From infant to booster seat, rear and forward facing the radian® 3RXT adapts as your child grows for 10 years of use (2.2 - 54 kg / 5 - 120 pounds).
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 (2.2 kg - 54 kg / 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.
AWARD WINNING RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT
REAR FACING FOR LONGER
Designed for safe rear facing travel from 2.2 - 22.7 kg / 5 - 50 pounds complete with newborn travel high wedge to protect as they grow from baby, infant to toddler.
SLIM FIT DESIGN FOR 3 ACROSS
As your family grows, the slim fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort.
ONE HAND EASY ADJUST 12 POSITION HEADREST
Creates a safe and comfortable fit for rear facing, forward facing and booster seat modes.
STEEL REINFORCED FRAME
Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.
Minimum User Weight: 5 lb / 2.3 kg
Maximum User Weight: 120 lb / 54 kg
Minimum User Weight - Rear Facing: 5 lb / 2.3 kg
Maximum User Weight - Rear Facing: 50 lb / 22.7 kg
Maximum User Weight - Rear Facing LATCH: 35 lb / 15.8 kg
Minimum User Weight - Forward Facing: 22 lb / 10 kg
Maximum User Weight - Forward Facing: 65 lb / 29.5 kg
Maximum User Weight - Forward Facing LATCH: 40 lb / 18 kg
Minimum User Weight - Booster: 40 lb / 18 kg
Maximum User Weight - Booster: 120 lb / 54 kg
Maximum User Height: 57.1 in / 145 cm
Number of Head Support Positions: 12
Product Height: 28.5 in / 72.4 cm
Product Width: 17 in / 43.2 cm
Product Depth: 16 in / 40.6 cm
Seat Weight: 12.76 kg / 28.1 lb
Care & Maintenance
Covers: Front loader only, gentle cycle machine wash cold, line dry.
Shell and Components: Spot clean
12 months standard warranty
Radian 3RXT Product Video
Radian 3RXT Rear-Facing Installation
Radian 3RXT Forward-Facing Installation
Radian 3RXT Booster Installation
The Diono Difference
The Radian® R series features a unique combination of diono car seat engineering and rigorous testing.
Built with our famous Radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.
Designed for every journey
Every Radian® All-in-One Convertible Car Seat is designed to adapt as your child grows to offer a custom fit from birth to booster (up to 120 lb / 54 kg.)
Total Child Comfort
Engineered to keep your child rear-facing for longer up to 50 lb / 22.7 kg.