GENUINE OEM Replacement Filters for Aprilaire - SpaceGard models Model 2200, 2250. 2200A1, 2200A2, 2200A3, 2200A10. Aprilaire 201 media filter with MERV 10 rating. Also Fits Source 1 S1-FM201. 1 each
Note: This filter doesn't fit NEW MERV 13 Upgrade Kit.