Hydraulic Automatic Shut Off (ASO) Valve for Water Filtration Systems - AquaFX Replacement Part for RO Systems, Pools & Home Water Treatment

Product Description

This is only the Hydraulic Automatic Shut Off (ASO).

You need a check valve on your system to prevent back flow. If you do not have a check valve, you need the Automatic Shut Off Kit . The kit comes complete with the ASO, check valve and some extra tubing.