FilterLOCK Furnace and Air Conditioning Filter Seal

air filter slot cover   Dan airport slot coordination

I never heard of a 5″ filter box for media filters Are you sure it isn't the case for an electronic air cleaner?

The FilterLOCK covers and seals the standard 1” furnace filter slots The overlapping two-piece design allows for filter slots measuring up to 25” in width  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

slot dog house We've seen some great improvements from these little filter covers An easy fix you can do Air Filter Efficiently seal air leakage and by-pass at your filter slotdoor with our Air Filter SlotDoor Cover Designed to force dirty air to travel