http://www.icondirect.com/skylights/RV Skylight Domes wrote:
Icon offers high quality replacement skylight domes that fit a variety of standard skylight openings, available in square, rectangle and neo-angle shapes. Skylights enhance the ambience of a room and help maintain a more comfortable, consistent indoor climate without wasting energy.
Choose a clear skylight dome to let the most light in, or select a translucent white one for more privacy and a diffused light.
I know your MH is an orphan but is there anyone you could call for parts?