Airteva AC, Furnace Filter With (1) Biosponge Plus Replacement Pad (12 X 18 x 1) Actual Size: 11 1/2 x 17 1/2 x 3/4"

Permanent aluminum frame for durability and a proper air seal BioSponge Plus refill eliminates the filter as a potential breeding ground for microorganisms and controls airborne germs with its Ageis microbe shield Fits all makes and models of furnaces and air conditioners - any size available 10-year warranty on the filter frame, so you'll always have a filter that fits and performs perfectly Actual size: 11 1/2 x 17 1/2 x 3/4 inches Provides maximum protection against airborne contamination Backed by a 60-day money-back guarantee