Orbit 65452 DripMaster 1/2" DripLock Tee, Bag of 5 Use for connecting 1/2-inch distribution tubing Works with the most common sizes of 1/2-inch drip tubing (690, 700 and 710 od) Unique release feature simplifies installation and maintenance Works with 1/2-inch orbit, 5/8-inch rain drip, toro blue stripe, 1/2-inch dig and 1/2-inch mister landscaper drip tubing For outdoor use with cold water only