ELECTRO AIR M2-1056 GENUINE 20x20x5 (Actual Size: 20-1/4 x 20-3/4 x 5-1/4 MERV 11 GOODMAN, ELECTRO-AIR, FIVE SEASONS, CARRIER, AMANA 20X20 MEDIA FILTERS Case of 3 Filters PRIME OEM PRODUCT Actual Size: 20-1/4" x 20-3/4" x 5-1/4" Nominal Size: 20" x 20" x 5" MERV 11 (ASHRAE 52.2), High Dust Holding Capacity