Say goodbye to small and inefficient housings. Get rid of expensive stainless steel housings. The 7-CTFS-2 Cartridge Tank is a direct replacement for small and inefficient 2 ½” or 4 ½” housings, or expensive Stainless Steel cartridge housings, and offers extended service and life, and a more cost-effective and efficient filtration solution. Utilizing industry exclusive liner design and no-tools necessary snap-ring design; Full radial seal top and bottom caps make replacement simple. Cartridge Tank makes it easy to access and remove the internal filtration solution. Lightweight and cost-effective with multiple configuration options, from high flow commercial/industrial applications to stand-alone residential Point-of-Entry (POE) installations for city and well water applications, this is the filtration solution of the future…100% non-metallic! The Cartridge Tank is a high performance, NSF 42 listed device and has been tested to 100 psi operating pressure with 4:1 Burst Safety Factor.