Honeywell FC100A1037203720 Furnace Media Air Cleaner Filter Aftermarket - $19.74 Each When You Buy 3 Purchase a single filter for $24.99 or stock up and SAVE when you buy 3 Quality Aftermarket Furnace Filter Made-to-Fit Honeywell Furnaces using the part numbers below Replaces Honeywell Part numbers: 203720, FC100A, FC35A1027, FC100A1037, FC200E, FC200E1037, FC-100-A, FC-35-A-1027, FC-100-A-1037, FC-200-E, FC-200-E-1037 Efficiency MERV Rating: 8 A MERV 8 Rating means a filter is 70% efficient at capturing particles sized 3.0-10.0 Microns We Also carry the MERV 11 Filter Fits opening measuring 20 x 25 x 5 inches Actual size-19-5/8 x 24-1/8 x4-3/4 inches Filter Life: 12 Months Honeywell 203720 Furnace Media Air Cleaner Filter manufactured by RPS. Product quality and fit guaranteed or your money back. These filters are manufactured by RPS and are made to fit Honeywell 203720 Furnace Media Air Cleaner Filter. Product quality and fit guaranteed or your money back. Please note before ordering: It is the responsibility of the customer to verify our actual dimensions to assure fit before ordering. Availability: Usually ships the same business day. Honeywell Furnace Filter, Air Cleaner Filter Media FC100A1037, 203720 Aftermarket - $19.74 Each When You Buy 3 RPS2025$24.99, 3/$59.22 Search Here: E-mail Us Privacy Policy Shipping Rates View Cart