Radian 3 RXT Safe+ All-In-One Convertible Seat

by Diono



SKU DI-50104

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The original Diono 3 across All-in-One Car Seat just got better. Upgraded with 18 improvements from the award-winning Radian 3RXT, the Diono Radian 3RXT Safe+ Convertible Seat features Diono Safe+ engineering, Safe+ anti-rebound bar and advanced Safe+ side impact protection for complete protection from birth to booster (4 - 120 lbs).


  • 18 upgrades from the Radian 3RXT, including Safe+® easy, adjust 12 position headrest, 6 layers of Safe+® Side impact protection and Safe+® testing.
  • Complete rear-facing protection with a Safe+® steel anti-rebound bar reduces rebound rotation by up to 50% for extended rear-facing travel up to 50 lbs
  • Features a unique combination of engineering features and testing to the highest safety standards to ensure we have the safest seat possible.
  • 10 years, One Seat: From rear-facing to forward facing Radian 3RXT Safe+ adapts as your child grows from birth to booster. Suitable from 4 - 120 lb.
  • Ultimate passenger comfort with spacious design but only 17 wide to fit 3 across in most midsize vehicles.


  • Suitable from 4 - 120 lbs 
  • Rear-Facing: 4 - 50 lbs
  • Rear-Facing with LATCH: 40 lbs 
  • Forward Facing: 22 - 65 lbs
  • Forward Facing LATCH: 40 lbs
  • Booster: 40 - 120 lbs
  • Maximum User Height: 57.1"
  • Number of Head Support Positions: 12
  • Dimensions: 72.4 cm / 28.5" H x 17" W x 16" D
  • Dimensions when folded: 28.5" H x 17" W x 11.5" D
  • Car Seat Weight: 30.6 lb


Care Instructions:

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

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