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Diono Radian 3RXT Convertible Car Seat

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SKU: RADIAN3RXT Categories: ,


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. Lovingly engineered with the famous Diono Steel Core and now rear-facing for even longer, you can expect 10 years of safety from just one car seat.

The Radian® 3RXT provides safe and comfortable baby positioning thanks to the new 2-in-1 infant positioning liner with integrated newborn baby travel high wedge. The wedge creates a lie-flat travel position, pushing baby up to reduce head slump while helping to keep airways open. As your baby grows, simply remove the wedge to allow the 2-in-1 infant positioning liner to give extra comfort and support. Designed and engineered with complete rear facing protection, so you can keep them in a safe rear facing convertible car seat for longer up to 50 pounds. Then as they transition from rear facing to forward facing booster seat the aluminum reinforced headrest can be adjusted to one of 12 positions for safety up to 57 inches tall. Built with a mechanically engineered, reinforced steel frame, made from automotive grade high strength steel, the radian is always ready to shield and protect. And when your family grows, the slimfit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. As travel car seat experts, Diono have naturally built in super portable features to the Radian® 3RXT with original fold for easy transport and storage and steel reinforced cup holder to store essential road trip drinks and snacks. The radian is also aircraft certified (FAA approved), so you can take safety with you wherever you go.

Diono Radian 3RXT Latch Convertible Car Seat Features

  • AWARD WINNING RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT – From infant to booster seat, rear and forward facing the radian® 3RXT adapts as your child grows for 10 years of use (5 – 120 pounds).
  • 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.
  • LIVE YOUR LIFE IN COLOR – Bright and fun color options that your child will surely love!
  • AIRCRAFT CERTIFIED – FAA approved so you can take safety with you wherever you go

Diono 3RXT Convertible Car Seat User Specifications

  • Minimum – Maximum User Weight: 5-120 lbs (2.3-54 kg)
  • Rear Facing Minimum-Maximum User Weight: 5-50 lbs (2.3-22.7 kg)
  • Forward Facing Minimum-Maximum User Weight: 22-65 lbs (10-29.5 kg)
  • Booster Minimum-Maximum User Weight: 40-120 lbs (18-54 kg)
  • Minimum User Height: 18 inches
  • Maximum User Height: 57.1 inches
  • Minimum-Maximum User Age: 0 – 120 Months

Diono Radiant 3RXT Product Dimensions

  • Dimensions (H x W x D): 28.5 x 17.0 x 16.0 inches
  • Folded Dimensions (H x W x D): 28.5 x 17 x 7.1 inches
  • Product Weight: 28.1 lbs

Care and Maintenance For Your Diono Radian 3RXT Car Seat

For the covers, machine was cold, line dry. Shell and hard components spot clean only.

Diono Radian Warranty

12 Months Standard Warranty (extended warranty available to purchase directly from Diono)

Additional information

Weight 31.7 lbs
Dimensions 10.2 × 17.3 × 29.7 in

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