Deliver a steady flow of water to plants alongside the entire run with the 16mm Dura Flo™ Dripline (0.550 in. ID X 0.640 in. OD). This dripperline features 0.5 GPH pressure-compensating (PC) emitters spaced 12 in. apart throughout the line. PC emitters maintain the same output of water should the water pressure change. The self-cleaning emitters flushes out sediments that can lead to clogging. Tubing is made of polyethylene, and emitters are made of polyethylene and silicone, all treated with UV inhibitors.