Single element, standard diameter cartridge housings for low-flow applications are available in reinforced polypropylene, glass reinforced nylon, 304 stainless steel, and 316 stainless steel. Inlet/outlet connections can be threaded NPT or John Guest-style and vary in pipe diameter from 1/4 to 3/4". Standard diameter housings may be available with features like pressure relief valves, integrated mounting brackets, and pressure gauge openings. A variety of cap and sump colors (including colorless sumps) are available.

Evoqua carries Pentek® Big Blue® and Big Clear housings in 10 and 20" lengths, with connection sizes of 3/4, 1, and 1.5". Big Blue® Housings are constructed from polypropylene. Big Clear Housings from polypropylene caps and Lexan/Polycarbonate sumps. Big Blue® and Big Clear Housings are available with optional pressure relief valves.