OK----things are looking up for finding this trim.
Pelland should be on the venders list.
Russ, I was able to find your window trim. It is a rigid screw cover for square windows. Part # H009-351 and is $1.20 a foot,
sold in 12 foot lengths, and can be cut down for shipping. There is a $25.00 minimum order on product. Let me know what you would like to do. Thanks, Diana
Pelland Enterprises represents quality after market replacement parts for the RV industry.
Thank you,
Diana Calman
Pelland Enterprises
800-216-2786 ext 105
diana@pellandent.com
www.pellandent.com