Provide a steady water flow along the line or make loops around larger plants with the flexible 16mm Dura Flo™ Dripline (0.550 in. ID X 0.640 in. OD). This dripperline features 1.0 GPH pressure-compensating (PC) emitters spaced 18 in. apart throughout the entire line. PC emitters maintain the same output of water even if the water pressure varies. 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.