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Diono - Radian RXT Convertible Car Seat




Age GroupsBirth to 36 kg / 134 cm

Average Rating55rating (Based on 3 reviews)   Read Reviews

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The Diono RadianRXT has been replaced with the Diono Rainier Convertible + Booster Car Seat (click to view).

RadianRXT is a highly versatile car seat that could be the only seat you’ll ever need. It comfortably seats rear-facing children from 2.2 - 20 kg, forward-facing children from 9 – 36 kg in 5-point harness, then converts to a booster for children up to 54.4 kg.

It’s built for strength and safety with a steel alloy frame, reinforced sidewalls, adjustable head support and Diono’s patented SafeStop energy absorbing harness. EPS foam surrounds the child's head and body to provide complete side impact protection. The unique SuperLATCH system makes installation easy.

The RadianRXT is NCAP crash tested, the industry benchmark for verifying child seat performance in severe accident conditions, and the only car seat rated for LATCH use with a child up to 36.2 kg (80 lbs). The RadianRXT sits low on a vehicle seat for easy child boarding, features memory foam padding and infant support pillows. Expandable sides and a longer seat bottom provide extra room and comfort for your growing child.

In addition to all this versatility, it folds flat for travel and storage, has a 10 year life and offers amazing safety, comfort and convenience your child won’t outgrow.

Rear facing: 2.26 – 20.4 kg (5 - 45 lbs)
Forward-facing: 9 – 36.2 kg (20 - 80 lbs) and up to 144 cm (57 in) in a 5-point harness
Booster: up 54.4 kg to 120 lbs

  • Steel alloy frame and aluminum reinforced sides
  • Safestop energy-absorbing harness system
  • Adjustable head support, reinforced for complete side impact safety
  • Energy-absorbing EPS foam panels on all sides
  • Rear-facing tether capability
  • LATCH installation up to 36.2 kg (80 lb) child
  • For vehicles without LATCH bars, you can still install safely using a 3-point seatbelt
  • Infant body support cushions
  • Memory foam padding for superior comfort
  • 5 shoulder and 3 buckle positions for custom fit
  • Expandable sides and longer seat bottom for leg support and comfort
  • 12 height positions for adjustable head support
  • 2 recline positions in forward-facing mode
  • Sits low on vehicle seat for easy child boarding
  • Fits 3 across in a mid-size vehicle and offers more shoulder space
  • Add up to 4 cup holders (1 included)
  • Folds flat for travel and storage
  • Rubber bottom grips for no-slip installation
  • Removable cover: Hand wash, line dry
  • 10 year life
  • FAA certified for use in aircraft
  • New Zealand ‘S’ certified

  • Open dimensions: 72.39(H) x 43.18(W) x 40.64(D) cm
    Folded dimensions: 72.39(H) x 43.18(W) x 25.4(D) cm.

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