FilterLock Filter Slot Seal – Seal Cover for Any 1” Furn

website air filter slot cover Improves indoor air quality; Saves energy; Fits up to 25” opening; Residential or Commercial construction; Magnetic; Covers 1 or 2 wide filters Installation airbet slot air conditioning systems through the filter slotdoor and bypass the air filter Energy Efficient: By stopping air leakage in your HVAC system, you

air filter slot cover 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  The HVAC contractor argued and said that a filter cover was not required at this location and it would not hurt anything to leave it open He  The HVAC contractor argued and said that a filter cover was not required at this location and it would not hurt anything to leave it open He

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