Airteva AC, Furnace Filter With (1) Biosponge Plus Replacement Pad (20 X 20 x 1) Actual Sizeize: 19 1/2 x 19 1/2 x 3/4"

What Makes Airteva Filters Different? With ordinary filters up to 50% of the air moved through your system will not go through the air filter at all. That's because most air filters on the market are either made of cardboard or plastic, and these types of filters are unable to make a proper air seal. This means the air and pollution will simply go around the filter bypassing it completely. The Airteva filter is made from extruded heavy duty aluminum and incorporates our patented Leak-Guard seal, so the air has no choice but to pass through the filter material, giving you 100% air filtration. About BioSponge Plus filter media: BioSponge Plus® filter pads eliminate the filter as a potential breeding ground for micro- organisms, they also control airborne germs with its Ageis microbe shield. This germ fighting filter features a special dual density design to allow for an extended 60 day filter life. Replacement is a breeze, just peel out the soiled pad, and replace with a fresh one. Filter Measuring: Because our filters are constructed from aluminum, they don't bend. Be sure to order a size that can easily slide into your system.