this kind of filter meet all of your large-capacity filtration needs, including high-flow and heavy-sediment applications. The extra large housing allows for greater cartridge capacity, reducing the number of vessels required for high-flow rate applications.Reinforced polypropylene housings have excellent chemical and inside big PP cartridge can remove dirt,suspended particulate and rust in water,and are ideal for many residential, commercial and industrial applications. Avaible with 10" and 20" in height.