Not only is the Diono Radian 3RXT 4-in-1 Convertible Car Seat on sale for $90 off on Amazon, but there’s a new $60 coupon. Clip the coupon before checking out, and the price will drop to $179.99 in your cart.

The coupon works on the blue sky, gray slate, purple plum, and red cherry colors, but the best sale price is on gray slate.

This is the best price we’ve seen on Diono car seats since March 2020. Check out more car seat deals here.

Get free two-day shipping with Amazon Prime. Not a member? Sign up for a free 30-day trial now. Otherwise, shipping is free on orders of $25 or more.

Buy 1 Diono Radian 3RXT 4-in-1 Convertible Car Seat – Gray Slate (reg. $329.99) $239.99, sale price
Use Amazon coupon for $60 off
Free shipping with Amazon Prime or on orders of $25+
Final Price: $179.99