Big Blue 20-inch Carbon Filter 5-micron

Big Blue 20" Carbon Block Filter (replaces CABBB20) Product Features 5 Carbon Block Solid carbon for removal of chlorine, tastes, odors, and chemicals Replaces CABBB20 Identical product, updated part number Big Blue 20" Fits Big Blue housings used on some whole house filter systems Standard Size Industry standard size fits Big Blue 20" filter housings - Approximate dimensions 19-3/4"x 4-1/2" Product Description Replacement carbon block filter fits Big Blue 20" filter housings. Used in many application where chlorine, chemical, taste and odor removal is desired. Typical life expectancy varies greatly depending on water parameters and useage. Recommended replacement is at least once a year, with every six months typical.