Nominal Size: 18 x 18 x 1, Actual Size: 17 3/4 x 17 3/4 x 3/4 (17. 75 x 17. 75 x 0. 75)*MERV 8 and FPR 6 is equivalent to MPR 800*Removes lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants*Lasts up to 3 months, depending on your unique home or office environment*Made in the USA
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Item# : SPM12885641904
Model # : RNAB005ESO374