The Orbit drip-lock coupling for 1/2 inch drip irrigation tubing makes running your irrigation line a breeze. This easy-to-push-on coupling works on the most common sizes of 1/2 drip tubing (.690 .700 & .710). Included is a unique release tab that allows for removal and reinsertion of tubing for convenient installation and maintenance. The fitting has an oversized seal and durable gripping teeth that will hold most any brand of 1/2 poly tubing and dripline tubing.