For on/off, restricted flow or sampling applications, the Hayward StopCock is easily adaptable to any piping connection. Furnished with the valve are 1/4" NPT female pipe thread end connectors, 1/4" NPT male pipe thread end connectors and hose barb end connectors for 1/4" through 7/16" ID tubing. These allow the valve to be fitted with up to six different end connection combinations. Simply attach the end connections you need with the included wrench. The end connections seal with an o-ring and do not require sealing tape.