Hi all, I have been busy all day. The treads are commercial rubber manufactured by Roppe in Ohio. Lowes, Home Depot, Menards do not have this quality. The ones I have seen at those stores are paper thin. On those 2 coaches there is a stepwell cover that slides out with air. Some manufacturers use an electric motor- which is my preference as you have to have air in your tank to operate it.
On 5th wheels, there is a commercial rubber tile that can be used, plus a stairnose rubber.
A full service retail store can also get these treads.
I like these treads as they have the raised round circles vs the lines that dirt gets trapped in.
I installed one of those on my previous coach on the outside step. While it matched in color and style for a while- the UV rays turned it a chalky gray.- So not for exterior use.
JCZ- I'm tired too, and after beating old ceramic tile into submission on this current coach- look it, too.