Direct-Loc Flow Control Valves with 1/2" MPT are used with drip irrigation and thread into 1/2” female threads. Allows you to adjust or stop the flow of water through 700 & 710 drip poly tubing. This product is commonly used at the start of a drip hose row or run with flow control enabling the quick and easy shut off of inidividual rows or sections of the Drip System.