Diono Radian
Seat NameDiono Radian
Expiration8 years harness
10 years booster
Rear Facing5 to 45 pounds (R120/RXT)
5 to 40 pounds (R100)
Up to 44 inches
Forward FacingManufactured after Sept. 2017:
20 to 65 pounds (R120/RXT)
20 to 65 pounds (R100)
17.5 inch top harness slots
Note: For seats manufactured before Sept 2017, weight limits are different. See the Safety Notice from Diono.
Booster Limits50 to 120 pounds (R120/RXT)
50 to 100 pounds (R100)
Up to 57 inches
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