Airteva AC, Furnace Filter With (1) Biosponge Plus Replacement Pad 16 1/4 x 21 1/2 x 1) Actual Size: 16 1/4 x 21 1/2 x 3/4"

Provides maximum protection against airborne contamination Includes (1) permanent aluminum frame & (1) BioSponge Plus refill Simple to use, easily fits all makes and models of furnaces and air conditioners Backed by a 10 year warranty Made from extruded heavy duty aluminum with patented Leak-Guard seal BioSponge Plus filter media eliminates the filter as a potential breeding ground for micro-organisms and controls airborne germs with its Ageis microbe shield Dual density design for extended 60 day filter life Reusable filterYou may also like Airteva AC, Furnace Filter With (1) Biosponge Plus Replacement Pad (25 X 25 x 1) Actual Size: 24 1/2 x 24 1/2 x 3/4".