Orbit 10 pk 1/2" Sprinkler System Plastic Automatic Drain Valves, Auto Drains

This sprinkler system drain valve is ideal for use with residential sprinkler systems or commercial sprinkler systems and can be a supplement to winterizing sprinkler systems. This sprinkler drain valve seals when irrigation system water is running and will not drain until water pressure leaves. For all your underground sprinkler systems draining, this sprinkler drain is great. Features and Benefits: Comes in a pack of 10, Has �-inch male threading, Easily connects to the low point of yard sprinkler system lines, Acts as a supplement to winterizing sprinkler systems, Automatically drains irrigation system pipes when pressure is released.