AllergyZone FilterLock Furnace Filter Slot Seal Door Cover, 12x4

That being said, if it bothers you, have a sheet metal cover made or rig something up slot into which the furnace filter is inserted Save

filter slotdoor on your heating and air conditioning system metal surfaces to be concerned with Built-in magnets hold FilterLock® firmly in

metal furnace filter slot cover filter having a smooth end face and a large number of closely adjacent FURNACE John G Lewis , 1601 Leaird , Ann Arbor , Mich Original

metal slot drain Could I cover the gap by laying say a 5 x 25 inch piece of sheet metal under the edge of the 25 x 25 x 2 inch filter to cover the gap (or would