Diono Radian
Seat NameDiono Radian
Expiration8 years harness
10 years booster
Rear Facing5-45 lbs (R120/RXT)
5-40 lbs (R100)
Up to 44”
Head 1″ below the top of the 26" shell
Forward FacingManufactured after Sept. 2017:
20-65 lbs (R120/RXT)
20-65 lbs (R100)
17.5" top harness slots
Note: For seats manufactured before Sept 2017, weight limits are different. See the Safety Notice from Diono.
Booster Limits50-120 lbs (R120/RXT)
50-100 lbs (R100)
Up to 57"
Seat NameDiono Radian
Fits Newborns
No Re-thread Harness
Premium Lower Anchor Connectors
Lock Offs
Anti-Rebound Bar
Additional Information 
CSFTL ReviewDiono Radian Review
Buy OnlineAmazon
Retail Price$287