The Canopy Aerostar 12x12x1 MERV 11 Furnace Air Filter comes in a pack of 6 white filters with actual dimensions of 11 3/4" x 11 3/4" x 3/4". Made in the United States, these pleated filters have a synthetic filter media and an electrostatic filter technology. Each filter has a MERV 11 rating and a 3-month filter life, suitable for use in furnaces and air conditioners.
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