Healthy Air 16x25x4 MERV 12 Pleated Furnace Air Filter, Box of 2 Actual Size of Filter: 15 1/2 x 24 1/2 x 3 5/8 Hypoallergenic and antimicrobial pleated electrostatic filter material Comparable to a MPR rating of 1500-1920 Superior Air Filter for Residential or Commercial Property Made in the USA