Designed for situations where the application environment and criteria exceed the parameters of Aqualyze plastic housings, the Standard single round housings provide a superior alternative, performing at high temperature, high pressure and with wider fluid compatibility. Allowing for both longitudinal and radial flow cartridges, the SFH housing is manufactured with a spring-loaded seal plate accepting cartridge lengths from 93/4” to 30” and a head which accommodates a 213 O-ring seal along with the regular DOE/ AA end-caps for wider application capability.