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Smart baby gear isn’t just a trend. See how the Diono Radian 3QXT SafePlus holds up with 126 specs & features — including general information, dimensions & weight, design & aesthetics & fabric & materials that matter.
A fast snapshot of the Diono Radian 3QXT SafePlus, covering its standout specification and what you can expect right out of the box.
Diono Radian 3QXT SafePlus
The Diono Radian 3QXT SafePlus represents the top-tier of the Radian line, featuring advanced newborn protection and side-impact management. It includes a newborn travel high wedge and infant positioning liner to provide a flat, safe travel angle for infants. The seat utilizes 8 layers of Side Impact Protection, including a steel anti-rebound bar for rear-
Specifications & Facts 126
Specs measured. Drama avoided.
Want the full lowdown? Our Diono Radian 3QXT SafePlus car seat breakdown includes specs, price, user feedback, and what makes it baby-bag-worthy or not.
General Information 15
Diono Radian 3QXT SafePlus Product Type
What type of car seat is it?
90 Diono Radian 3QXT SafePlus 0 Votes All-in-One Car Seat
58 Car Seats in this range Convertible Car Seat
Diono Radian 3QXT SafePlus
This classification means the seat transforms through 4 modes, from infant rear-facing to high-back booster, eliminating the need to buy multiple seats.
Defines the main classification of the car seat.
When it comes to Product Type, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 32 score measurement.
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The seat is designed to last a full 10 years, effectively covering your child's needs from day one until they outgrow car seats entirely.
Indicates the recommended age suitability of the child.
When it comes to Age Range Suitability, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 3 score measurement.
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Diono Radian 3QXT SafePlus Weight Range Suitability
What weight range does it support?
57 Diono Radian 3QXT SafePlus 0 Votes 4–120 lbs
58 Car Seats in this range 0–79.4 lbs
Diono Radian 3QXT SafePlus
This wide range supports children from a tiny 1.8 kg newborn up to a 54 kg pre-teen, making it a true long-term investment.
Shows the safe weight range supported by the seat.
When it comes to Weight Range Suitability, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 1 score measurement.
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Diono Radian 3QXT SafePlus Height Range Suitability
What height range does it support?
70 Diono Radian 3QXT SafePlus 0 Votes 0–57 inch
59 Car Seats in this range Up to 32 inch
Diono Radian 3QXT SafePlus
It accommodates children up to approximately 145 cm tall, which is typically the height where children transition to using a standard vehicle seat belt.
Defines child height range that fits safely in the seat.
When it comes to Height Range Suitability, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 11 score measurement.
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The SafePlus designation indicates this model features advanced SafePlus engineering, including an anti-rebound bar and side impact management pod not found on base models.
Identifies the specific model or version of the car seat.
When it comes to Model Name, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 5 score measurement.
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Diono Radian 3QXT SafePlus Model Number
What is the model number?
64 Diono Radian 3QXT SafePlus 0 Votes 51224
55 Car Seats in this range CS9013
Diono Radian 3QXT SafePlus
This specific model number usually refers to the Blue Sky colorway, though variations exist for other colors in the 3QXT line.
Identifies the specific model or version of the car seat.
When it comes to Model Number, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 9 score measurement.
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Diono Radian 3QXT SafePlus Release Year
What is the release year?
80 Diono Radian 3QXT SafePlus 0 Votes 2020
68 Car Seats in this range 2023
Diono Radian 3QXT SafePlus
The 2020 release marked a significant upgrade from the previous 3RXT models, introducing 25 new improvements in safety and engineering.
States the year of product launch or update.
When it comes to Release Year, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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The FAA certification ensures this seat is approved for use on aircraft, and its folding design makes it much easier to navigate through airports than standard rigid seats.
Shows compliance with child safety standards.
When it comes to Certification Approval Standard, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 15 score measurement.
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Diono Radian 3QXT SafePlus Seating Capacity
How many children can it seat?
100 Diono Radian 3QXT SafePlus 0 Votes 1 Child
61 Car Seats in this range 1 Child
Shows how many children the seat can accommodate.
When it comes to Seating Capacity, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 39 score measurement.
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Diono Radian 3QXT SafePlus Warranty Period
How long is the warranty period?
20 Diono Radian 3QXT SafePlus 0 Votes 12 Months
38 Car Seats in this range 24 Months
Specifies warranty length for defects and issues.
When it comes to Warranty Period, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 18 score measurement.
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Diono Radian 3QXT SafePlus Country of Manufacture
Where is it manufactured?
50 Diono Radian 3QXT SafePlus 0 Votes China
50 Car Seats in this range China
Identifies the country where the seat is produced.
When it comes to Country of Manufacture, Diono Radian 3QXT SafePlus ◉ is same as Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Facing Direction
What is the orientation?
100 Diono Radian 3QXT SafePlus 0 Votes Rear and Forward-Facing
67 Car Seats in this range Rear and Forward-Facing
States whether seat is rear-facing, forward-facing, or convertible.
When it comes to Facing Direction, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 33 score measurement.
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Diono Radian 3QXT SafePlus Target Market
What market is it targeted for?
100 Diono Radian 3QXT SafePlus 0 Votes Global
78 Car Seats in this range Global
Indicates intended sales regionmarket.
When it comes to Target Market, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 22 score measurement.
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Shows whether the model is active, new, or discontinued.
When it comes to Product Lifecycle Stage, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Dimensions & Weight 10
Diono Radian 3QXT SafePlus Product Length
What is the product length?
16 inch 0Votes
22.89 inch (Average)
Diono Radian 3QXT SafePlus
The depth of approximately 40.6 cm is compact enough to allow front-seat passengers reasonable legroom in most mid-sized vehicles.
Total length of the seat when fully assembled.
When it comes to Product Length, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 6.9 inch measurement.
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Diono Radian 3QXT SafePlus Product Width
What is the product width?
17 inch 0Votes
18.21 inch (Average)
Diono Radian 3QXT SafePlus
This narrow 43.2 cm profile is a superior feature that allows you to install 3 car seats across the back seat of most family vehicles.
Total width across the car seat.
When it comes to Product Width, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 1.2 inch measurement.
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Diono Radian 3QXT SafePlus Product Height
What is the product height?
28.5 inch 0Votes
24.71 inch (Average)
Diono Radian 3QXT SafePlus
Standing at roughly 72.4 cm, the seat fits well in standard cabins, though the headrest extends higher as your child grows.
Overall height of the car seat.
When it comes to Product Height, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 3.8 inch measurement.
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Diono Radian 3QXT SafePlus Product Weight
What is the product weight?
32 lbs 0Votes
21.27 lbs (Average)
Diono Radian 3QXT SafePlus
Weighing approximately 14.5 kg, this seat is significantly heavier than average due to its steel-reinforced frame, which provides unmatched structural solidity.
The weight of the car seat itself.
When it comes to Product Weight, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 10.7 lbs measurement.
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Diono Radian 3QXT SafePlus Seat Base Width
What is the base width?
17 inch 0Votes
16.23 inch (Average)
Diono Radian 3QXT SafePlus
The 43.2 cm base width is consistent with the overall width, ensuring no bulky overhangs interfere with adjacent passengers or seats.
Width of the seat base that rests on vehicle seat.
When it comes to Seat Base Width, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 0.8 inch measurement.
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Diono Radian 3QXT SafePlus Folded Length
What is the folded length?
11.5 inch 0Votes
19.04 inch (Average)
Diono Radian 3QXT SafePlus
When folded, the seat compresses to just 29.2 cm deep, making it convenient to store in a closet or check as luggage during travel.
Length of the car seat when folded.
When it comes to Folded Length, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 7.5 inch measurement.
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Diono Radian 3QXT SafePlus Folded Height
What is the folded height?
28.5 inch 0Votes
14.71 inch (Average)
Diono Radian 3QXT SafePlus
The folded height remains 72.4 cm, allowing you to carry it like a backpack if you purchase the separate travel straps or bag.
Height of the car seat when folded.
When it comes to Folded Height, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 13.8 inch measurement.
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Diono Radian 3QXT SafePlus Child Height Limit
What is the child height limit?
57 inch 0Votes
44.87 inch (Average)
Diono Radian 3QXT SafePlus
A limit of roughly 145 cm ensures the seat remains useful for elementary school-aged children in booster mode.
Maximum child height the seat can support.
When it comes to Child Height Limit, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12.1 inch measurement.
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Diono Radian 3QXT SafePlus Seat Depth
What is the seat depth?
16 inch 0Votes
19.19 inch (Average)
Depth of seating area for the child.
When it comes to Seat Depth, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 3.2 inch measurement.
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Diono Radian 3QXT SafePlus Folded Width
What is the folded width?
17 inch 0Votes
17 inch (Average)
Width of the car seat when folded.
When it comes to Folded Width, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 0.0 inch measurement.
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These options correspond to Diono's "Blue Sky," "Black Jet," "Gray Slate," "Red Cherry," and "Purple Plum" collections, offering vibrant choices to match vehicle interiors.
Available color variations.
When it comes to Color Options, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 16 score measurement.
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Diono Radian 3QXT SafePlus Design Theme
What is the design theme?
90 Diono Radian 3QXT SafePlus 0 Votes Modern
82 Car Seats in this range Modern
General design aesthetic of the seat.
When it comes to Design Theme, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 8 score measurement.
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Diono Radian 3QXT SafePlus Texture Finish
What is the texture finish?
50 Diono Radian 3QXT SafePlus 0 Votes Matte
48 Car Seats in this range Matte
Type of surface texture finish.
When it comes to Texture Finish, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 2 score measurement.
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Diono Radian 3QXT SafePlus Stitching Style
What stitching style is used?
40 Diono Radian 3QXT SafePlus 0 Votes Standard
31 Car Seats in this range Standard
The visible stitching style used.
When it comes to Stitching Style, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 9 score measurement.
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Diono Radian 3QXT SafePlus Logo Brand Placement
Where is the logo placed?
85 Diono Radian 3QXT SafePlus 0 Votes Headrest, Side Panel
72 Car Seats in this range Headrest
Where the brand logo is placed.
When it comes to Logo Brand Placement, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 13 score measurement.
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Diono Radian 3QXT SafePlus Premium Edition Version
Is there a premium edition?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if a premium edition is available.
When it comes to Premium Edition Version, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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The cover features high-performance fabrics blended with memory foam, providing comfort for long road trips while being durable enough to withstand daily wear.
Type of material used for the seat cover.
When it comes to Cover Material, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 8 score measurement.
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Diono Radian 3QXT SafePlus Removable Cover
Is the cover removable?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Diono Radian 3QXT SafePlus
The cover is fully removable for cleaning, although reattaching it can be time-consuming due to the precise fit over the safety foam layers.
Indicates whether the seat cover can be removed.
When it comes to Removable Cover, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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This combination creates 8 layers of Side Impact Protection, a superior safety feature that absorbs energy more effectively than standard single-layer foam seats.
Type of padding inside the car seat.
When it comes to Padding Material Type, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 9 score measurement.
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Diono Radian 3QXT SafePlus Washable Cover
Is the cover washable?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Specifies if the cover is washable.
When it comes to Washable Cover, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Diono Radian 3QXT SafePlus Machine Wash Safe
Is the cover machine-wash safe?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if cover is safe for machine washing.
When it comes to Machine Wash Safe, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 14 score measurement.
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Diono Radian 3QXT SafePlus Hand Wash Recommended
Is hand wash recommended?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Whether hand washing is recommended for longevity.
When it comes to Hand Wash Recommended, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Stain-Resistant Fabric
Is the fabric stain-resistant?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Resists staining from food or spills.
When it comes to Stain-Resistant Fabric, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Flame Retardant Fabric
Does it have flame retardant fabric?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Shows if flame retardant fabric is used.
When it comes to Flame Retardant Fabric, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Comfort & Convenience 10
Diono Radian 3QXT SafePlus Headrest Cushion
Does it have a headrest cushion?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Diono Radian 3QXT SafePlus
The 12-position headrest includes reinforced side wings, offering critical head containment and protection during side-impact collisions.
Extra cushioning in headrest area for comfort.
When it comes to Headrest Cushion, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Diono Radian 3QXT SafePlus Infant Insert Included
Is an infant insert included?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Diono Radian 3QXT SafePlus
The seat comes with a "SafePlus" newborn travel high wedge and liner, designed to position babies as small as 1.8 kg safely and comfortably.
Removable padding for newborns.
When it comes to Infant Insert Included, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 16 score measurement.
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Diono Radian 3QXT SafePlus Fabric Material
What fabric type is used?
50 Diono Radian 3QXT SafePlus 0 Votes Polyester
45 Car Seats in this range Polyester
Type of fabric used in the seat covering.
When it comes to Fabric Material, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 5 score measurement.
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Diono Radian 3QXT SafePlus Leg Rest Foot Support
Does it have legfoot support?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Provides leg or footrest to reduce fatigue.
When it comes to Leg Rest Foot Support, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Toddler Insert Included
Is a toddler insert included?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Extra insert for toddlers transitioning from infant stage.
When it comes to Toddler Insert Included, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 32 score measurement.
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Diono Radian 3QXT SafePlus Ergonomic Design Features
Does it have ergonomic features?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Special ergonomic shaping for posture and comfort.
When it comes to Ergonomic Design Features, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Diono Radian 3QXT SafePlus Seat Contour Type
What seat contour type is it?
40 Diono Radian 3QXT SafePlus 0 Votes Flat
70 Car Seats in this range Bucket
Shape of the seat design for child positioning.
When it comes to Seat Contour Type, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 30 score measurement.
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When it comes to Adjustable Shoulder Straps, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 13 score measurement.
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When it comes to Seat Depth Adjustability, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Head Support Adjustability
Is the head support adjustable?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Allows head support to move with child growth.
When it comes to Head Support Adjustability, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 13 score measurement.
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The 12 distinct positions allow precise adjustment as your child grows, ensuring the head wings are always at the safest level relative to their head.
Number of headrest positions available.
When it comes to Adjustable Headrest Positions, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 7 score measurement.
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The transition involves re-threading the harness and adjusting the recline angle, allowing you to keep children rear-facing longer for safety.
Shows if the seat allows easy switch from rear to forward facing.
When it comes to Rear-to-Forward Transition Feature, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 26 score measurement.
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How many harness height adjustments are available?
24 Diono Radian 3QXT SafePlus 0 Votes 5
42 Car Seats in this range 10
Number of vertical positions for harness straps.
When it comes to Harness Height Adjustment Levels, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 18 score measurement.
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Diono Radian 3QXT SafePlus Adjustable Leg Support
Does it have adjustable leg support?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if leg support can be extended or repositioned.
When it comes to Adjustable Leg Support, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Multi-Stage Use
Can it be used as a convertible seat?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Whether the seat adapts across infant, toddler, and booster stages.
When it comes to Multi-Stage Use, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 23 score measurement.
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Diono Radian 3QXT SafePlus Booster Mode Support
Can it be used as a booster?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if seat can convert into booster mode.
When it comes to Booster Mode Support, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 35 score measurement.
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Diono Radian 3QXT SafePlus Seat Belt Guide
Does it include a seat belt guide?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Helps position seat belt properly in booster mode.
When it comes to Seat Belt Guide, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 21 score measurement.
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Diono Radian 3QXT SafePlus Storage Pocket
Does it have storage pockets?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates presence of small storage compartments.
When it comes to Storage Pocket, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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When it comes to Shoulder Width Adjustment, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 38 score measurement.
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Safety & Protection 15
Diono Radian 3QXT SafePlus Side Impact Protection
Does it have side impact protection?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Diono Radian 3QXT SafePlus
This model features a specialized Side Impact Management Pod that attaches to the side of the seat facing the door to channel crash energy away from the child.
Indicates presence of padding or technology against side collisions.
When it comes to Side Impact Protection, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Diono Radian 3QXT SafePlus Steel Reinforced Frame
Does it have a steel reinforced frame?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Diono Radian 3QXT SafePlus
The full automotive-grade high-strength steel core shields and protects the child, acting as a roll cage within the car seat.
Steel in the frame increases durability and crash safety.
When it comes to Steel Reinforced Frame, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 20 score measurement.
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A steel anti-rebound bar is included, which reduces the seat's rebound rotation by up to 50% in a collision, significantly enhancing rear-facing safety.
Feature that limits rebound motion in crash.
When it comes to Anti-Rebound Protection, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 20 score measurement.
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You can keep your child in the safer rear-facing position up to 22.7 kg, which is higher than the standard limit on many convertible seats.
Allows children to remain rear-facing beyond standard limits.
When it comes to Extended Rear-Facing Capability, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 23 score measurement.
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Diono Radian 3QXT SafePlus Impact-absorbing Base
Does it have an impact-absorbing base?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Diono Radian 3QXT SafePlus
The base is engineered to compress and absorb energy during a crash, reducing the forces transferred to the child's body.
Base designed to dissipate crash forces.
When it comes to Impact-absorbing Base, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 14 score measurement.
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Diono Radian 3QXT SafePlus Energy-Absorbing Foam
Does it use energy-absorbing foam?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Presence of EPS or EPP foam to absorb crash forces.
When it comes to Energy-Absorbing Foam, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Diono Radian 3QXT SafePlus Five-Point Harness
Does it use a five-point harness?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Shows if the seat uses a five-point harness system.
When it comes to Five-Point Harness, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 14 score measurement.
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Diono Radian 3QXT SafePlus Three-Point Harness
Does it use a three-point harness?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if a simpler three-point harness is used.
When it comes to Three-Point Harness, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus No-Rethread Harness
Does it have a no-rethread harness?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Harness adjusts without rethreading straps manually.
When it comes to No-Rethread Harness, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Harness Adjustment Type
What type of harness adjustment does it have?
20 Diono Radian 3QXT SafePlus 0 Votes Manual
43 Car Seats in this range Manual
Method of adjusting harness tightnessheight.
When it comes to Harness Adjustment Type, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 23 score measurement.
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When it comes to Headrest Adjustment Levels, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 18 score measurement.
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Diono Radian 3QXT SafePlus Crash Test Certification
Indicates which crash test programs the seat passed.
When it comes to Crash Test Certification, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 14 score measurement.
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Diono Radian 3QXT SafePlus Safety Indicators
Does it have safety indicators?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Shows if the seat includes built-in safety status indicators.
When it comes to Safety Indicators, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Alerts whether seat should not be used with active airbags.
When it comes to Airbag Compatibility Warning, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 14 score measurement.
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While LATCH (SuperLATCH) is available, the "SafeStop" load-limiting device is often required for forward-facing installation when using the vehicle seat belt for children under 18 kg.
Indicates which systems can be used to secure the car seat.
When it comes to Installation Method, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 7 score measurement.
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Many parents report the installation has a steeper learning curve due to the heavy weight and precise adjustments required for a secure fit.
Relative ease of installation (e.g., 1–5 rating).
When it comes to Installation Difficulty Rating, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 60 score measurement.
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When it comes to Built-in Level Indicator, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus Compatibility with Travel System
Is it compatible with travel systems?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Whether the seat can attach to a stroller system.
When it comes to Compatibility with Travel System, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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Diono Radian 3QXT SafePlus FAA Aircraft Approval
Is it FAA approved?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates approval for use in airplanes.
When it comes to FAA Aircraft Approval, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 28 score measurement.
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Diono Radian 3QXT SafePlus Quick Installation Features
Does it have quick installation features?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates presence of fast-install mechanisms.
When it comes to Quick Installation Features, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
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When it comes to Instruction Label Clarity, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 14 score measurement.
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The fabric covers can be washed at 30°C, but they must be air-dried to prevent shrinkage and maintain flame retardancy.
Recommended method for cleaning the car seat.
When it comes to Cleaning Instructions, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 19 score measurement.
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Diono Radian 3QXT SafePlus Detachable Fabric Parts
Are the fabric parts detachable?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Shows if fabric components can be removed.
When it comes to Detachable Fabric Parts, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Diono Radian 3QXT SafePlus Drying Instructions
What are the drying instructions?
65 Diono Radian 3QXT SafePlus 0 Votes Line Dry Only
50 Car Seats in this range Air Dry
Specifies how the fabric should be dried.
When it comes to Drying Instructions, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 15 score measurement.
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Diono Radian 3QXT SafePlus Spot Clean Only Areas
Are there spot-clean only areas?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Areas that must be cleaned by spot cleaning only.
When it comes to Spot Clean Only Areas, Diono Radian 3QXT SafePlus ◉ is same as Car Seat in this range ◉ , delivering equal 7 score measurement.
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Diono Radian 3QXT SafePlus Replacement Part Availability
Are replacement parts available?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if replacement parts are available.
When it comes to Replacement Part Availability, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
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Diono Radian 3QXT SafePlus Care Label Instructions
What do the care label instructions say?
100 Diono Radian 3QXT SafePlus 0 Votes Clear
84 Car Seats in this range Clear
Details on the sewn-in care label.
When it comes to Care Label Instructions, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 16 score measurement.
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Indicates if any tools are needed for maintenance.
When it comes to Maintenance Tools Required, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 76 score measurement.
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Diono Radian 3QXT SafePlus Spare Parts Ordering Process
How can spare parts be ordered?
20 Diono Radian 3QXT SafePlus 0 Votes Simple
22 Car Seats in this range Simple
Information on how to order spare parts.
When it comes to Spare Parts Ordering Process, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 2 score measurement.
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Packaging & Shipping 5
Diono Radian 3QXT SafePlus Number of Boxes
How many boxes are included?
0 Diono Radian 3QXT SafePlus 0 Votes 1
3 Car Seats in this range 1
Total number of boxes shipped for the product.
When it comes to Number of Boxes, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 3 score measurement.
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Diono Radian 3QXT SafePlus Packaging Type
What type of packaging is used?
20 Diono Radian 3QXT SafePlus 0 Votes Standard
21 Car Seats in this range Standard
Type of packaging material used.
When it comes to Packaging Type, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 1 score measurement.
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Diono Radian 3QXT SafePlus Assembly Required
Is assembly required?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Whether the product requires assembly after unboxing.
When it comes to Assembly Required, Diono Radian 3QXT SafePlus ◉ is same as Car Seat in this range ◉ , delivering equal 24 score measurement.
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Diono Radian 3QXT SafePlus Instruction Manual Included
Is the manual included?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
States if an instruction manual is included.
When it comes to Instruction Manual Included, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 12 score measurement.
Don’t keep it to yourself — be the first to react and review the Instruction Manual Included on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Tools Included
Are tools included?
No 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if necessary tools are included.
When it comes to Tools Included, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
Don’t keep it to yourself — be the first to react and review the Tools Included on Diono Radian 3QXT SafePlus ◉ and help others decide!
The standard warranty covers manufacturing defects for 12 months, but registering the product often extends support for the full useful life of the seat.
Defines what the warranty covers.
When it comes to Warranty Coverage Scope, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 17 score measurement.
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Diono offers a verified "Lifetime Journey Care" subscription or extended warranty options upon registration, covering the seat for its 10-year lifespan.
Whether extended warranty is available.
When it comes to Extended Warranty Option, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 34 score measurement.
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Diono Radian 3QXT SafePlus Warranty Coverage for Fabric
Does the warranty cover fabric?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
States if warranty includes fabric weardefects.
When it comes to Warranty Coverage for Fabric, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 19 score measurement.
Don’t keep it to yourself — be the first to react and review the Warranty Coverage for Fabric on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Registration Required for Warranty
Is registration required for warranty?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Shows if product registration is needed for warranty.
When it comes to Registration Required for Warranty, Diono Radian 3QXT SafePlus ◉ is same as Car Seat in this range ◉ , delivering equal 3 score measurement.
Don’t keep it to yourself — be the first to react and review the Registration Required for Warranty on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Customer Support Availability
When is customer support available?
50 Diono Radian 3QXT SafePlus 0 Votes Business Hours Only
48 Car Seats in this range Business Hours Only
Level of customer support provided.
When it comes to Customer Support Availability, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 2 score measurement.
Don’t keep it to yourself — be the first to react and review the Customer Support Availability on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Recall Policy
Is there a recall policy?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Indicates if the brand has a recall policy.
When it comes to Recall Policy, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 14 score measurement.
Don’t keep it to yourself — be the first to react and review the Recall Policy on Diono Radian 3QXT SafePlus ◉ and help others decide!
When it comes to Insurance Accident Coverage, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
Don’t keep it to yourself — be the first to react and review the Insurance Accident Coverage on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Replacement Seat Program (post-accident)
Is there a post-accident replacement program?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Whether a replacement seat is offered after an accident.
When it comes to Replacement Seat Program (post-accident), Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 24 score measurement.
Don’t keep it to yourself — be the first to react and review the Replacement Seat Program (post-accident) on Diono Radian 3QXT SafePlus ◉ and help others decide!
When it comes to Upgrade/Trade-in Policy, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ .
Don’t keep it to yourself — be the first to react and review the Upgrade/Trade-in Policy on Diono Radian 3QXT SafePlus ◉ and help others decide!
Accessories & Add-ons 11
Diono Radian 3QXT SafePlus Cup Holder
Does it include a cup holder?
100 Diono Radian 3QXT SafePlus 0 Votes Yes
32 Car Seats in this range No
Diono Radian 3QXT SafePlus
A detachable cup holder is included, which can be mounted on either side, though it slightly increases the total width of the setup.
States if the car seat comes with a cup holder.
When it comes to Cup Holder, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 68 score measurement.
Don’t keep it to yourself — be the first to react and review the Cup Holder on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Carrying Handle
Does it have a carrying handle?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Diono Radian 3QXT SafePlus
While not a traditional handle, the seat folds flat and locks, allowing you to carry it by the main structural bar or with a backpack strap accessory.
Indicates if the seat has a handle for carrying.
When it comes to Carrying Handle, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 31 score measurement.
Don’t keep it to yourself — be the first to react and review the Carrying Handle on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Snack Tray
Does it include a snack tray?
0 Diono Radian 3QXT SafePlus 0 Votes No
7 Car Seats in this range No
Shows if a snack tray is provided.
When it comes to Snack Tray, Diono Radian 3QXT SafePlus ◉ is worse than Car Seat in this range ◉ , delivering equal 7 score measurement.
Don’t keep it to yourself — be the first to react and review the Snack Tray on Diono Radian 3QXT SafePlus ◉ and help others decide!
Diono Radian 3QXT SafePlus Travel Bag Compatibility
Is it compatible with travel bags?
Yes 0Votes Diono Radian 3QXT SafePlus
Yes Car Seats in this range
Shows if the seat can fit into a travelstorage bag.
When it comes to Travel Bag Compatibility, Diono Radian 3QXT SafePlus ◉ is better than Car Seat in this range ◉ , delivering higher 30 score measurement.
Don’t keep it to yourself — be the first to react and review the Travel Bag Compatibility on Diono Radian 3QXT SafePlus ◉ and help others decide!
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