AllergyZone FilterLock Furnace Filter Slot Seal Door Cover, 12x4

AllergyZone FilterLock Furnace Filter Slot Seal Door Cover, 12x4 filter slot cover Filter Lock Furnace Filter Slot Seal by Allergy Zone is a patented, one-size-fits-all product that covers the filter slotdoor to prevent entry of filter slot cover Product Filter · Home · Products · Accessories · T-Slot Cover · 30 Series T-Slot Cover

slot trench Even though it's sized correctly, we still cover the filter perimeter with blue painters tape Lots of air would find its way around the filter