Yep, I get all my 303 through Amazon. 303 is about the only protectant I could find that wasn't petroleum based. I use it on the 5th wheel tires, rubber window trim and the awning. The tires get cleaned with it three times a year. The ones on it now are 2 years old and most people ask if I had to buy new tires since they look just as good as they did when I put them on.
I also use it for the truck dash and door panels. Good stuff