Great Compatibility --- This limit switch is universally used on Atwood, Hydro Flame, Dometic RV Furnace, including:
AFSAD12111, AFSD12111, AFSD16111, AFSD20111, AFSDA12121, AFSAD12121, AFSD12121, AFSD16121,
AFSD20121, AFSAD12131, AFSD12131, AFSD16131, AFSD20131, AFSAD12141, AFSD12141,
AFSD16141, AFSD20141, AFMD16111, AFMD20111, AFMD25111, AFMD30111, AFMD35111, AFMD16121,
AFMD20121, AFMD25121, AFMD30121, AFMD35121, AFMD16131, AFMD20131, AFMD25131,
AFMD30131, AFMD35131, AFMD16141, AFMD20141, AFMD25141, AFMD30141, AFMD35141,
AFMD16151, AFMD20151, AFMD25151, AFMD30151, AFMD35151, AFLA35211, AFLA40211, AFLD35111,
AFLD40111, AFLA35221, AFLA40221, AFLD35121, AFLD40121, AFLA35231, AFLA40231, AFLD35131,
AFLD40131, DFLA35211, DFLA35221, DFLA35231, DFLA40211, DFLA40221, DFLA40231, DFLD35111,
DFLD35121, DFLD35131, DFLD40111, DFLD40121, DFLD40131, DFMD16111, DFMD16121, DFMD16131,
DFMD16141, DFMD16151, DFMD20111, DFMD20121, DFMD20131, DFMD20141, DFMD20151,
DFMD25111, DFMD25121, DFMD25131, DFMD25141, DFMD25151, DFMD30111, DFMD30121,
DFMD30131, DFMD30141, DFMD30151, DFMD35111, DFMD35121, DFMD35131, DFMD35141,
DFMD35151, DFSAD12111, DFSAD12121, DFSAD12131, DFSAD12141, DFSD12111, DFSD12121,
DFSD12131, DFSD12141, DFSD16111, DFSD16121, DFSD16131, DFSD16141, DFSD20111, DFSD20121,
DFSD20131, DFSD20141

If your item is defective, incorrect, arrived damaged or any other problems, please send us emails. Describe the nature of the problem (please include pictures if possible). You will be taken care of as quickly as possible.