Welcome to JOF.
That is an item hard time find, from what I read. There is a surplus store called Bontragers that might be helpful. LINKY
Otherwise, the recpro website, you found, is another resource. LINKY
Best of luck! There are a few threads, LINKY
, that might help.
Some people have managed to replace the unit with another brand, but had to modify the opening.
John & Jennifer and family
2018 Jayco White Hawk 31BH 34'
2004 Surveyor by Forest River 29'
1996 Coachman Catalina 25'
TV 2010 Dodge Ram 2500HD CC SLT 5.7L 4WD SB
2002 Jayco 12UTD PopUp