Filtrete NADP03-4IN-4 Air Filter 25 in L 20 in W 11 MERV 1000 MPR 4/PK - Pack of 4

Opt for a Filtrete allergen defense air filter to transform your central heating and cooling system into a whole-home air filtration operation. This no-nonsense filter helps capture varying sizes of particles, from the large (lint, pollen, dust and pet dander) to the microscopic (smoke and smog).