Features: OE PART NUMBER31501 33488 33727. Please double-check that the part number, photo and size match before purchasing, make sure whether it fit the part you want. PREMIUM QUALITYMade of high quailty materials, durable and corrosion-resistant. Build to factory original quality OE specifications to ensure a proper fit. FUNCTIONThe ignition control circuit board is a key component of the RV furnace. Prompt replacement of the ignition control circuit board helps ensure the normal use of the RV furnace. EASY INSTALLATION Plug-and-play design for straightforward replacement, only disconnect the power, remove the old circuit board, then install the new 31501 RV furnace circuit board. Fit For: Compatible with Atwood Dometic Hydro Flame Furnaces 7912-II, 7916-II, 7920-II, 8012-II, FA 79D, HF 80D, DC82 25-32, DC82 35-41, FA 76D, FA 78 25-32, FA 72D, 85-I Series, 85-II Series, 8500-III Series, 8500-IV Series, 8900-I DC Series, 8900-II DC Series, 8900-III DC Series, AFSD12, AFSD16, AFSD20, AFMD20, AFMD25, AFMD30, AFMD35, DFMD20111, DFMD30111, DFMD25111, DFMD35111 DFSD12111, DFSD16111 DFSD20111, ect PACKAGE Package Includes: 1 X 31501 RV Furnace Ignition Control Circuit Board