Emit water along the entire line at a steady rate using the 17mm Dura Flo™ Dripline (0.560 in. ID X 0.660 in. OD). The purple stripe on the dripperline can be used to differentiate itself from existing lines and identify different zones in an irrigation system. This drip irrigation tubing features 1.0 GPH pressure-compensating (PC) emitters evenly spaced 12 in. apart. PC emitters maintain a constant flow rate even if the water pressure changes. The emitters have a turbulent flow design which flushes out sediments that can lead to clogging. Tubing is made of polyethylene, emitters are made of polyethylene and silicone, all treated with UV inhibitors.