Hehr window replacement for an older Roadtrek

Thanks Boondocker. I did contact Pelland who told me that they require the part number. They said that the window needs to be removed in order to view the part number!! I had given them dimensions. I'd rather not remove the window and then possibly (probably) be told that they don't have it. Their on-line listing didn't include a window of our dimensions. But thanks anyway for taking the time to write.