Filtrete AL42-4 Air Filter, 12 in L, 30 in W, 11 MERV, 1000 MPR, Polypropylene Frame

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Filtrete Air Filter, Non-Electrostatic, Pleated, MPR Rating: 1000, MERV Rating: 11, Filter Media: Fiberglass, Frame Material: Polypropylene, 12 in L, 30 in W, 1 in Thick