The only time I have seen a panel replaced is one of the end Fan panels. Anytime one of the other panels has been damaged thatI have seen, they put the new one over the top of the old one.On mine for the tub I plan to use styrofoam sheets slightly un...
There appear to be two types interior end-caps. I have two sets, one set made out of fiberglass. And one set made out of some type of plastic. The fiberglass ones are still in great shape and very tough. The plastic ones break if you breathe on them.
