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Radian® 3RX

$169.99 - $269.99

The original 3 across All-in-One convertible car seat


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Additional 2-Year Warranty

Receive an additional 2-year warranty on all car seats and strollers purchased from diono.com

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1-2-1 Virtual Car Seat Fitting

Book a 1-2-1 virtual car seat fitting with a member of our car seat safety team.

* T & C's apply

Radian® 3RX

The original 3 across All-in-One convertible car seat. Now rear-facing even longer (50 pounds / 2.3 kg) and featuring all new head support infant insert, expect 10 years of safety from just one car seat.

Features:

  • THE ORIGINAL SLIM FIT ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian® 3RX adapts as your child grows for 10 years of use (5 - 120 pounds / 2.2 - 54 kg).
  • REAR FACING FOR LONGER - Designed for safe rear facing travel from 5 - 50 pounds / 2.2 - 22.7 kg  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.
  • STEEL REINFORCED FRAME - Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect.
  • INFANT HEAD & BODY SUPPORT - Features padded support for cocooned comfort. Simply remove as your infant transitions from rear-facing to forward facing booster seat.

Product Specs

  • 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: 26.8 lb / 12.15 kg

Care & Maintenance

Covers: Machine wash cold, line dry. Shell and Components: Spot clean

Warranty Information

12 months standard warranty - extended to 36 months when you register with Diono® post purchase

The Diono Difference

The Radian® R series features a unique combination of diono car seat engineering and rigorous testing.
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.)
Built with our famous Radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.
Engineered to keep your child rear-facing for longer up to 50 lb.

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