3/4" FPT x 1/2" (17 mm) Barbed Ball Valve

Automatic valves are cool, but they require an expensive controller to use and only have so many programming options. If you want total manual control, then you want a ball valve like the A007. This valve can be used to open or close part of your system manually, whenever you want. It can also be used as a line end (making it easy to open and flush your system), an emergency shutoff (in case one of your automatic valves fails), and a last-resort flow regulation decide (talk to our customer service reps before you do this!). More details on how to use this item are in the description tab below.

This is a custom-built item that we make in-house as we haven't had luck finding a high-quality equivalent from any manufacturer. The 3/4" schedule 40 PVC ball valve is hardy and resilient, and the 17mm" barbed outlet is compatible with .700 OD poly tubing and 17mm tubing. The barb will ensure a tight hold to compatible tubing, but for extra security you can use an A555 ratchet clamp.