The original 3 across All-in-One convertible car seat
$619.00
Black JetBlue SkyPink Blossom

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Radian® 3RX

  • DESCRIPTION  
  • SPECS
  • VIDEO

The Diono Radian® 3RX is the original slim fit 3 across all-in-one convertible car seat, designed to protect from birth to booster seat (5 - 120 lb / 2.2 - 54 kg). Featuring 12 position adjustable head support, extended rear-facing up to 50 lb and steel reinforced frame, expect 10 years of safety from just one car seat.

Features:

12 POSITION HEADREST

Creates a safe and comfortable fit for rear facing, forward facing and booster seat modes.

INFANT HEAD SUPPORT LINER

Features padded support for added comfort. Simply remove as your infant transitions from rear-facing to forward facing booster seat.

10 YEARS ONE CAR SEAT

From rear-facing to forward facing Radian 3RX adapts as your child grows from birth to booster. Suitable from 5 – 120 lb / 2.2 - 54 kg.

SLIM FIT 3 ACROSS

Ultimate passenger comfort with spacious design but only 17” wide to fit 3 across in most midsize vehicles.

REAR FACING FOR LONGER

Designed and engineered to keep your child rear-facing for as long as possible up to 50 lb / 22.7 kg.

STEEL REINFORCED FRAME

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

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

  • Seat Weight: 28.1 lb / 12.76 kg

  • Product Height: 28.5 in / 72.4 cm

  • Product Width: 17 in / 43.2 cm

  • Product Depth: 16 in / 40.6 cm

  • Maximum User Height: 57.1 in / 145 cm

  • Number of Head Support Positions: 12

Care & Maintenance

Covers: Front loader only, gentle cycle machine wash cold, line dry. 

Shell and Components: Spot clean

Warranty Information

12 months standard warranty

Radian 3 Across - Color The Journey 3RX/3RXT

Radian® 3RX All-in-One Convertible Car Seat - Features (US & Canada)

Radian® 3RX Rear-facing Installation

Radian® 3RX Forward-facing Installation

Radian® 3RX Booster Mode Installation

The Diono Difference

radian® 3RX - diono® slimline 3 across convertible car seat

Diono Engineering

The Radian® R series features a unique combination of diono car seat engineering and rigorous testing.

radian® 3RX - diono® slimline 3 across convertible car seat

Fits 3 Across

Built with our famous Radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.

radian® 3RX - diono® slimline 3 across convertible car seat

10 Years One Car Seat

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.)

radian® 3RX - diono® slimline 3 across convertible car seat

Rear-facing for longer

Engineered to keep your child rear-facing for longer up to 50 lb.

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