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Radian® 3RX

$379.99
$299.99
Radian® 3RX all in one convertible car seat [Black Jet]
Rear-facing for longer up to 22.7 kg [Black Jet]
2-in-1 head support [Black Jet]
10 years one car seat [Black Jet]
Full steel core [Black Jet]
Rear-facing from 2.2 kg [Black Jet]
Rear-facing for longer up to 22.7 kg [Black Jet]
Slim fit 3-across design forward facing [Black Jet]
Side impact protection [Black Jet]
Easy remove machine wash covers [Black Jet]
SuperLATCH connectors for quick and easy installation [Black Jet]
FAA approved folds for travel [Black Jet]
Memory foam comfort [Black Jet]
New XL anti-slip harness pads [Black Jet]
5-point harness up to 29.5 kg / 65 lb [Black Jet]
Radian® 3RX all in one convertible car seat [Blue Sky]
Rear-facing for longer up to 22.7 kg [Blue Sky]
2-in-1 head support [Blue Sky]
10 years one car seat [Blue Sky]
Full steel core [Blue Sky]
Rear-facing from 2.2 kg [Blue Sky]
Rear-facing for longer up to 22.7 kg
Slim fit 3-across design forward facing [Blue Sky]
Side impact protection [Blue Sky]
Easy remove machine wash covers [Blue Sky]
SuperLATCH connectors for quick and easy installation [Blue Sky]
FAA approved folds for travel [Blue Sky]
Memory foam comfort [Blue Sky]
New XL anti-slip harness pads [Blue Sky]
5-point harness up to 29.5 kg / 65 lb [Blue Sky]
Radian® 3RX all in one convertible car seat [Gray Slate]
Rear-facing for longer up to 22.7 kg [Gray Slate]
2-in-1 head support [Gray Slate]
10 years one car seat [Gray Slate]
Full steel core [Gray Slate]
Rear-facing from 2.2 kg [Gray Slate]
Rear-facing for longer up to 22.7 kg [Gray Slate]
Slim fit 3-across design forward facing [Gray Slate]
Side impact protection [Gray Slate]
Easy remove machine wash covers [Gray Slate]
SuperLATCH connectors for quick and easy installation [Gray Slate]
FAA approved folds for travel [Gray Slate]
Memory foam comfort [Gray Slate]
New XL anti-slip harness pads [Gray Slate]
5-point harness up to 29.5 kg / 65 lb [Gray Slate]
Radian® 3RX all in one convertible car seat [Pink Blossom]
Rear-facing for longer up to 22.7 kg [Pink Blossom]
2-in-1 head support [Pink Blossom]
10 years one car seat [Pink Blososm]
Full steel core [Pink Blossoms]
Rear-facing from 2.2 kg [Pink Blossom]
Rear-facing for longer up to 22.7 kg [Pink Blossom]
Slim fit 3-across design forward facing [Pink Blossom]
Side impact protection [Pink Blossom]
Easy remove machine wash covers [Pink Blossom]
SuperLATCH connectors for quick and easy installation [Pink Blossom]
FAA approved folds for travel [Pink Blossom]
Memory foam comfort [Pink Blossom]
New XL anti-slip harness pads [Pink Blossom]
5-point harness up to 29.5 kg / 65 lb [Pink Blossom]
Radian® 3RX all in one convertible car seat [Red Cherry]
Rear-facing for longer up to 22.7 kg [Red Cherry]
2-in-1 head support [Red Cherry]
10 years one car seat [Red Cherry]
Full steel core [Red Cherry]
Rear-facing from 2.2 kg [Red Cherry]
Side impact protection [Red Cherry]
Easy remove machine wash covers
SuperLATCH connectors for quick and easy installation
FAA approved folds for travel [Red Cherry]
Memory foam comfort [Red Cherry]
New XL anti-slip harness pads [Red Cherry]
5-point harness up to 29.5 kg / 65 lb [Red Cherry]
Radian® 3RX all in one convertible car seat [Black Jet]

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


$379.99
$299.99
OR

Radian® 3RX

The original 3 across All-in-One convertible car seat. Now rear-facing even longer (up to 22.7 kg / 50 pounds) and featuring all new head support infant insert, expect 10 years of safety from just one car seat.

Features:

  • THE ORIGINAL SLIMFIT 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 (2.2 - 54 kg / 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.
  • 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: 2.3 kg / 5 lb
  • Maximum User Weight: 54 kg / 120 lb
  • Minimum User Weight - Rear Facing: 2.3 kg / 5 lb
  • Maximum User Weight - Rear Facing: 22.7 kg / 50 lb
  • Maximum User Weight - Rear Facing LATCH: 15.8 kg / 35 lb
  • Minimum User Weight - Forward Facing: 10 kg / 22 lb
  • Maximum User Weight - Forward Facing: 29.5 kg / 65 lb
  • Maximum User Weight - Forward Facing LATCH: 18 kg / 40 lb
  • Minimum User Weight - Booster: 18 kg /40 lb
  • Maximum User Weight - Booster: 54 kg / 120 lb
  • Maximum User Height: 145 cm / 57.1 in
  • Number of Head Support Positions: 12
  • Product Height: 72.4 cm / 28.5 in
  • Product Width: 43.2 cm / 17 in
  • Product Depth: 16 in / 40.6 cm
  • Seat Weight: 12.15 kg / 26.8 lb

Care & Maintenance

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

Warranty Information

12 months standard warranty

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 54 kg.)
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 22.7 kg.

Plays well with

Radian® 3QX all in-one-convertible car seat [Blue Sky]
Sale

Radian® 3QX

$499.99
$439.99

The ultimate 3 across All-in-One car seat from birth to booster.

Radian® 3QXT next generation of all in-one-convertible car seat [Red Cherry]
Sale

Radian® 3QXT

$549.99
$489.99

The ultimate 3 across All-in-One car seat from birth to booster

Radian® 3RXT all in one convertible car seat [Red Cherry]
Sale

Radian® 3RXT

$439.99
$379.99

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

Customers Also loved

Radian® 3RXT all in one convertible car seat [Red Cherry]
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Radian® 3RXT

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Radian® 3QX all in-one-convertible car seat [Blue Sky]
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Radian® 3QX

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$439.99

The ultimate 3 across All-in-One car seat from birth to booster.

Radian® 3R all in one convertible car seat [Gray Slate]

Radian® 3R

$329.99

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

Radian® 3QXT next generation of all in-one-convertible car seat [Red Cherry]
Sale

Radian® 3QXT

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$489.99

The ultimate 3 across All-in-One car seat from birth to booster

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