Air Sponge Filters
They Built A Better Furnace Air Filter.Air Sponge's Furnace Filters have been engineered to eliminate the many problems found in ordinary furnace filters. So unique, it's patented. AwardedU.S. Patents# 5,525,136 , #6,007,596Patents Pending. | ||
There has never been a furnace filter like it!![]() ![]() | ||
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![]() Each furnace air filter arrives ready to install, nothing to assemble. Completely backed by the Air Sponge money-back guarantee. Clean, fresh air and so convenient -- why wouldn't you give it a try? | ||
$74.95
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$69.95
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