540031 - FilterLock - Filter Slot Cover

metal furnace filter slot cover
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Furnaces I've had in the past had pretty much the same filter slot, but they also had a metal cover, about 25in x 2in, which is loose (no hinges

It effectively covers the filter slots situated at the side or top of metal return air ducts It can be trimmed to fit over various sizes as necessary

metal furnace filter slot cover The Filter Slot Seal is ideal for any furnace, air conditioner or air cleaner filter Based on recommendations by the Department of Energy, you should cover

metal lottery result Filter Lock is a patented two-piece seal system designed for use with 1” air filters that eliminates air leakage at the filter slotdoor to improve indoor air