![Upgrade 31093 RV Furnace Air Flow Sail Switch](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Perfect Adaptation:
Fit for Furnace AFSAD Serial Numbers Before 72498929
Fit for AFSAD12111, AFSDA12121 AFSAD12131, AFSAD12141
Fit for AFSD Serial Numbers Before 72498929
Fit for AFSD12111, AFSD16111, AFSD20111, AFSDA12121, AFSD16121, AFSD20121, AFSD12131, AFSD16131, AFSD20131, AFSD12141, AFSD16141, AFSD20141
Fit for AFMD Serial Numbers Before 72498929
Fit for AFMD16111, AFMD16121, AFMD16131, AFMD16141, AFMD16151, AFMD20111, AFMD20121, AFMD20131, AFMD20141, AFMD20151