This is a great, economical replacement cartridge for sediment removal with taste and odor removal capacities. It is 20 inches long and 4.5 inches across. For use in Ametek, Pentek, American Plumber, Culligan, and other filter housings. 5-micron rating for clear water. This can be used on its own or after a sediment filter. 4-1/2" wide x 20" long