Quote from Jason Cannon on July 29, 2022, 9:11 am

The Main Difference between Retrax ONE and Retrax Pro Tonneau Cover is in construction. RetraxONE is Polycarbonate Construction that is impact and scratch-resistant. Retrax Pro is Fiberglass reinforced ABS Construction. This makes it much more durable and rigid than the other one, but it will not be as impact-resistant or scratch-resistant as the RetraxONE. The weight limit for RetraxONE is 250 pounds, and the weight limit for RetraxPRO is 500 pounds.

read this blog if you want to learn more about Retrax one vs Pro Tonneau Cover.