2 FilterBuy 20x25x6 Aprilaire Space Gard 201 Compatible Pleated AC Furnace Air Filters. AFB Platinum MERV 13. 2 - 20x25x6 Aprilaire Space Gard 201 Alternative Pleated AC Furnace Air Filters. Designed by FilterBuy to fit 2200 Units. Designed to fit Aprilaire Space Guard 2200 and 2250 Air Cleaners Fits into plastic housing - no fingers required Pack of 2 filters. FilterBuy:Breathe Better! MERV 13 rating - best of breed filter. Small particles & bacteria