Nordic Pure 25x25x2 MERV 10 Pleated AC Furnace Air Filter,  Box of 3 Actual Size of Filter: 24 1/2 x 24 1/2 x 1-3/4 Outperforms comparable fiberglass, washable, and poly disposable filters Electrostatic air filter captures dust, pollen, dust-mite debris, mold spores, pet dander, and smog Hypoallergenic and antimicrobial pleated electrostatic filter material Made in the USA