Ideal in a wide range of residential, commercial, and industrial high-flow applications, the PureT Big Flow Filter Housing with outstanding chemical compatibility is the perfect solution for whole house filtration systems, as well as large scale commercial and industrial post-reverse osmosis filtration, and numerous other similar applications. The strong, NSF-certified, FDA-grade polypropylene housing with thicker walls for increased durability accommodates filter cartridges in the 4.5" inch diameter range. Available in 3/4", 1" and 1.5" inch NPT ports. With a maximum pressure rating of 100 psi, a temperature range of 40 to 100 F, and four mounting bosses molded into every end cap, as well as an available pressure relief button on the inlet side of the end cap, the PureT Big Flow Filter Housing meets your filtration needs with multiple options Additional Details ------------------------------ Product description: Ideal in a wide range of residential, commercial, and industrial high-flow applications, the PureT Big Flow Filter Housing with outstanding chemical compatibility is the perfect solution for whole house filtration systems, as well as large scale commercial and industrial post-reverse osmosis filtration, and numerous other similar applications. The strong, NSF-certified, FDA-grade polypropylene housing with thicker walls for increased durability accommodates filter cartridges in the 4.5" inch diameter range. Available in 3/4", 1" and 1.5" inch NPT ports. With a maximum pressure rating of 100 psi, a temperature range of 40 to 100 F, and four mounting bosses molded into every end cap, as well as an available pressure relief button on the inlet side of the end cap, the PureT Big Flow Filter Housing meets your filtration needs with multiple options