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Radian 3QX

$399.99
$199.99

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


$399.99
$199.99
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Receive an additional 2-year warranty on all car seats and strollers purchased from diono.com

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Radian 3QX

The advanced 3 across All-in-One car seat from birth to booster 4 - 120 lb (1.8 - 54 kg). Featuring 3 stages of complete rear facing protection and all new Diono Safe+® engineering to provide the next generation in car seat safety

Features:

  • NEXT GENERATION RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian® 3QX adapts as your child grows for 10 years of use (4 - 120 pounds / 1.8 - 54 kg ).
  • 3-IN-1 REAR FACING PROTECTION - Designed for safe rear-facing travel from 4 - 50 pounds (1.8 - 22.7 kg) complete with Safe+® inserts and Safe+® steel anti-rebound bar to reduce rebound rotation by 50%
  • SAFE+® ENGINEERING - Tested Radian® all-in-one convertible car seat; featuring Safe+® steel rear-facing anti-rebound bar, steel reinforced frame, advanced side impact protection and Diono SuperLATCH attachment.
  • SLIM FIT DESIGN FOR 3 ACROSS - Features 6 layers of Safe+® side impact protection without compromising 3 across installation in most midsize vehicles.
  • ONE HAND EASY ADJUST 12 POSITION HEADREST - Contoured to improve child head containment and provides a 22% increase in occupancy range from the Radian® R series.

Product Specs

  • Minimum User Weight: 4 lb / 1.8 kg
  • Maximum User Weight: 120 lb / 54 kg
  • Number of Head Support Positions: 12
  • Minimum User Weight - Rear Facing: 4 lb / 1.8 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
  • Product Height: 28.5 in / 72.4 cm
  • Product Width: 17 in / 43.2 cm
  • Product Depth: 16 in / 40.6 cm
  • Seat Weight: 31.3 lb / 14.2 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® Q series exclusively features Diono Safe+® engineering, our unique combination of car seat engineering and rigorous testing to provide the best possible protection for your child.
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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