Dometic DFSD12131 Rv Furnace Tune Up Kit.

Dometic DFSD12131 Rv Furnace Tune Up Kit. Kit #1 Is Only Applicable To Serial Numbers Before 72498929 Tune-Up Kit #1 Includes Item #4510 Electrode Assembly 35100 Item #4560 Limit Switch, 190 Degrees 31091 Item #4524 Sail Switch 31093 (curved blade) Kit #2 Is Only Applicable To Serial Numbers After 72498929 Tune-Up Kit #2 Includes Item #4510 Electrode Assembly 35100 Item #4560 Limit Switch, 190 Degrees 31091 Item #4524 Sail Switch 33081 (flat blade)