The 6-inch DuraBreeze® Carbon Filter keeps indoor garden air clean and fresh. This filter contains a 2.5-inch pelletized carbon bed within zinc-anodized steel housing. It includes a pre-filter, attached flange and a one-year warranty, and has an approximate life span of one year. Effective up to 550 cubic feet per minute with a diameter of 13 inches and a height of 18 inches including the flange. Weighs approximately 34 pounds.