Where are Diono products made? June 07, 2021 11:02 Updated Diono products are designed and engineered near Seattle, WA, and manufactured in China. If you’d like to find out more about the Diono Radian 3RXT visit our store: https://store.diono.ca/radian-3rxt/ Related articles How do I sanitize my Radian® car seat? Is the Styrofoam replaceable on Diono car seats? Can you recycle Radian car seats? How long can I use the radian 3R, 3RX, or 3RXT in booster mode? Comments 0 comments Article is closed for comments.