Heavy Duty Housings are ideal substitutes for costly low pressure stainless steel vessels. American Plumber filter housings offer the versatility to 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. Heavy Duty Housings are compatible with a broad range of chemicals. Reinforced polypropylene housings have excellent chemical resistance and are ideal for many residential, commercial and industrial applications.