540031 - FilterLock - Filter Slot Cover

website furnace filter slot cover Shop FilterLock Filter Slot Seal – Seal Cover for Any 1” Furnace Filter, Up To 25” Long online at best prices at desertcart furnace filter slot If you can't find a filter slot on your HVAC unit, try looking in the vents that blow air into your rooms Some systems have filters in the return air vents

furnace filter slot cover An HVAC professional can retrofit such a filter to your current ductwork if you don't already have a slot that can hold a 4-inch filter   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   It's also not advised to use a furnace filter that is too thin for your furnace filter slot When this is the case just a single HVAC air filter is needed

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