2012 Tiffin Phaeton 40QBH Window trim
The exterior, which you canít see, has ribbed seals (if you blow up the photo on the Tiffin website you can sort of see them as they are blurry) so as you press it into place it will seal. No adhesive required. I opened the window, pulled out the old one, cleaned up the channel and installed the new one.
By the way, that is the seal a friend installed in his 2013 Phaeton.
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