1210040 - 4" PVC Single Union In-line Ball Check Valve, Socket x Socket

4" PVC/EPDM/SOC/SU BALL CHECK VALVE ASAHI Features and Benefits Uniseat/seal of EPDM or FKM Ball is the only moving part. It unseats to permit flow in one direction but seals against seat to prevent backflow. May be used vertically or horizontally Minimum shut-off of 5 psi All sizes rated for full vacuum service Solid thermoplastic ball NSF-61 Certified - Sizes: ½" - 2", Material: PVC, EPDM, FKM Styles:        Single Union Threaded        Single Union Flanged        Single Union Socket        Foot Valves Sizes:        NSF-61 Certified - Sizes: 3"- 4", Materials :        PVC, EPDM & FKM   DASAH00390