Diono Radian 3RXT SafePlus Max
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Our Review of the
Diono Radian 3RXT SafePlus Max
More coming soon!
Our recommendation: From 2 months until the seat is outgrown (average 7-8 years old)
A 3-in-1 car seat that can be used rear-facing, forward-facing, and in high-back booster mode
From 2+ months


Seat is good for you if
You need to fit 3 across
Use caution if
You want a seat that's easy to install.
You want a seat that's easy to use.
Quirks to be aware of
Child Fit Information
Installation Information
Videos
For help with all things airplane travel and car seats, check out our Wheels Up Course and private Facebook group.
Check out our full list of car seats for Airplane Travel here: FAA Approved Car Seats.
Check out our full list of Canadian car seats for Airplane Travel here: Aircraft-Approved Car Seats.
SITS Bottom Line

Similar Car Seats
Specifications
Diono
Product Information
Weight: 31.9 lbs
Width: 17"
Highest Harness Height:
Rear Facing Limits
Height: 18-44"
Weight: 4-50lbs
Head Height Rules: at least 1.5″ below the top of the headrest
Lower Anchor Connectors Weight Limit: 35lbs
Forward-Facing Limits
Height: 30-57"
Weight: 26.5-65lbs
Head Height Rules: ears must be below the top of the headrest
Lower Anchor Connectors Weight Limit: 40lbs
No Back Booster Limits
Highest Belt Guide Settings
High Back Booster Limits
Height: 40-57"
Weight: 40-120lbs
Head Height Rules: ears must be below the top of the headrest
Other Important Details
Newborn Fit
haven't seen a newborn in it yet
Expiration Limit
8 years in harness mode, 10 years in booster mode
Crash Replacement Policy
replace after a moderate or severe crash
Harness
rethread
Lock-off
no
Vehicle Seat Protectors
This brand allows Diono mats:
Diono Grip It Car Seat Protector