Nordic Pure 20x25x5L2M12-2 Lennox X6675 Replacement MERV 12 Pleated Furnace Air Filter, Box of 2 Actual Size: 19 7/8 x 24 7/8 x 4 3/8 Superior Air Filter for Residential or Commercial Property Comparable to a MPR rating of 1500-2007 Hypoallergenic and antimicrobial pleated electrostatic filter material Made in the USA