Baby & Toddler expert Alex recommended it to a customer in Palos Heights 11 days ago
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Diono Radian 3QXT Convertible Car Seat

Diono Radian 3QXT Convertible Car Seat

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  • Returnable
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Product details


The ultimate 3 across All-in-One car seat from birth to booster (4 - 120 lb) Featuring advanced 4-in-1 newborn protection and all new Safe+® engineering to provide the next generation in car seat safety.


  • THE ULTIMATE RADIAN ALL-IN-ONE CONVERTIBLE CAR SEAT - From infant to booster seat, rear and forward facing the Radian® 3QXT adapts as your child grows for 10 years of use (4 - 120 lb).
  • 4-IN-1 NEWBORN PROTECTION - Designed for safe rear facing travel from 4 - 50 lb complete with Safe+® inserts and Safe+® steel anti-rebound bar to reduce rebound rotation by 50%.
  • SAFE+® ENGINEERING - Our most rigorously 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 8 layers of Safe+® side impact protection (including Safe+® side Impact management pod 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.
  • THE ORIGINAL RADIAN® 3 ACROSS: Built with our famous Radian® slim fit convertible design for a 3-across option only with Diono Radian® combinations, without compromising child or passenger comfort. Feel safe having your children secure in the backseat.
Product dimensions
16 in. D x 17 in. W x 28 in. H
Head rest positions
Installation Type
Rigid Latch System
TSA Approved
Model year
Recommended Age Range
From newborn up to 10 years
Child Maximum Weight (Forward Facing)
65 lbs
Child Maximum Weight (Booster)
120 lbs
Child Maximum Weight (Rear Facing)
50 lbs
Child Maximum Height (Booster)
57 in.
Child Maximum Height (Forward Facing)
57 in.
Child Maximum Height (Rear Facing)
44 in.
Child Minimum Weight (Rear Facing)
4 lbs
Child Minimum Height (Booster)
44 in.
Child Minimum Weight (Booster)
40 lbs
Child Minimum Weight (Forward Facing)
22 lbs
Product weight
25.8 lbs
Care instruction
Covers: Machine wash cold, line dry. Shell and Components: Spot clean
Folded dimensions
11.5 in. D x 17 in. W x 28 in. H
Height range
Up to 57.1 in.
Recline positions
Weight Range
4 to 120 lbs
Diono Radian 3QXT Convertible Car Seat
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