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 ).
The ultimate 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
NEXT GENERATION RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT
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%
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.
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: 22.7 kg / 50 lb
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: 145 cm / 57.1 in
Product Height: 28.5 in / 72.4 cm
Product Width: 17 in / 43.2 cm
Seat Weight: 29.6 lb / 13.43 kg
Care & Maintenance
Covers: Front loader only, gentle cycle machine wash cold, line dry.
Shell and Components: Spot clean
12 months standard warranty
Welcome to the Next Generation
Radian 3QX Rear-Facing Installation
Radian 3QX Forward-Facing Installation
Radian 3QX Booster Mode Installation
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.
Fits 3 Across
Built with our famous Radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort.
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 / 54 kg)
Rear-facing for longer
Engineered to keep your child rear-facing for longer up to 50 lb / 22.7 kg.