Airteva AC, Furnace Filter With (1) Biosponge Plus Replacement Pad (14 X 30 x 1) Actual Size: 13 7/8 x 29 7/8 x 3/4"

Provides maximum protection against airborne contamination with its permanent aluminum frame and BioSponge Plus refill Easily fits all makes and models of furnaces and air conditioners in any size available Backed by a 10-year warranty, making it potentially the last furnace filter you'll ever need to purchase Constructed from extruded heavy-duty aluminum with a patented Leak-Guard seal to ensure 100% air filtration BioSponge Plus filter media eliminates the filter as a potential breeding ground for microorganisms and controls airborne germs with its Ageis microbe shield Features a special dual-density design for an extended 60-day filter life Replacement is a breeze, just peel out the soiled pad and replace with a fresh one