J41865 is to be used with VHS3 & WHS3 wet end Pulsatron pumps.

The Injection Back Pressure Valve Assembly is designed to be used at the end of your discharge tubing at the injection point in your system. Once you have cut your discharge tubing to your desired length, you will attach the Injection valve to the end of the line. Attaching the valve is very simple, push your tubing on to the end of the injection valve then tighten down the nut to secure the line. Do not use pliers; Tighten it by hand only. The threads are machine cut so they will tighten properly by hand and do not need any sort of bonding agent.