Orbit 3/4" Male Pipe Thread x 1/2" Drip Adapter. It allows for easy connection of 1/2" drip tubing to a 3/4" pipe thread fitting. The unique release feature simplifies installation and maintenance, while the universal design works on the most common sizes of 1/2" drip tubing (.690 and .710). Included is a unique release tab that allows for removal and reinsertion of tubing for convenient installation and maintenance.