Diono Radian 3RXT 2020 Convertible Car Seat - Gray Slate

Diono Radian 3RXT 2020 Convertible Car Seat - Gray Slate

Model Number: 50021
Web Code: 14495571
Sold and shipped by | 5.0 seller rating (3 reviews)

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The Diono Radian® 3RXT is the original 3 across All-in-One convertible car seat, trusted by over a million parents to protect their child from birth to booster (5 - 120 lb.) Lovingly engineered with the famous Diono Steel Core and now rear facing for even longer, expect 10 years of safety from just one car seat.


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What's included:

  • radian® 3RXT car seat, detachable rear-facing base, foam harness pads, 2-in-1 head and body support infant insert, lap belt cushion, cup holder, Safe Stop® energy absorbing harness, rear-facing top tether, Instruction manual


SAFE & COMFORTABLE NEWBORN POSITIONING - Features newborn travel high wedge to create a lie-flat travel position. Then as your baby grows, simply remove the wedge to allow the 2-in-1 infant positioning liner to give cozy, comforting support.

10 YEARS 1 CAR SEAT - With 4 ways to travel from birth to booster, the radian® 3RXT adapts as your child grows to offer a custom fit from birth up to 120 lb.

THE ORIGINAL 3 ACROSS - Built with our famous radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.

REAR FACING FOR LONGER - Designed and engineered to keep your child rear facing for even longer up to 50 lb (approx. 4 years old).

STEEL CORE - Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.


Rear-facing: 5 - 50 lbs / 2.3 - 22.7 kg

Forward-facing: 22-65 lbs / 10-29.5 kg

Booster mode: 40-120 lbs / 18-54 kg

Seated torso height: 7.5-16.5″ / 19-42 cm

Overall maximum height up to 57″ / 144.8 cm

Weight: 26.4 lbs / 11.97 kg

Car Seat Type
2-in-1 Convertible Car Seat
Car Seat Orientation
Rear-facing Car Seat
Forward-facing Infant Car Seat
High-backed Booster Seat
Backless Booster Seat
Harness Points

Safety Requirements

Minimum Seat Weight Capacity
2.3 kg
Maximum Seat Weight Capacity
54 kg
Minimum Child Height
46 cm
Maximum Child Height
145 cm
Weight Capacity:Front Facing(Min)
10 kg
Weight Capacity:Front Facing(Max)
54 kg
Weight Capacity:Rear Facing(Min)
2.3 kg
Weight Capacity:Rear Facing(Max)
22.7 kg
Weight Capacity:Booster Seat(Min)
18 kg
Weight Capacity:Booster Seat(Max)
54 kg

Popular Features

Cup Holder
Washable Fabric
LATCH System
Gray Slate
Country of Origin


43.2 cm
72.4 cm
40.6 cm
12.76 kg
Shipping Charges
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Processing Time
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Shipping Area Restrictions
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  • No restrictions in Canada
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Product Category
Car seats
Return/Exchange Period
30 days

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