AllergyZone FilterLock Furnace Filter Slot Seal Door Cover, 12x4

AllergyZone FilterLock Furnace Filter Slot Seal Door Cover, 12x4 furnace filter slot cover If your filter slot doesn't have a cover, air, dust, and debris can be sucked into your system furnace filter slot cover I have a house where the furnace has a 25 x 1 wide slot in the air intake where I slide the 16x25x1 filter in from the top

10x minimum slot The size of your home, size of individual rooms and size of your HVAC filter slot can all come into play when it comes time to buy new air filters