The Netafim Woodpecker PCJ CNL emitter is the world's leading pressure compensating dripper both in quality and number of installations. Advanced PC design gives a uniform and accurate flow rate over a wide range of input pressures. A built-in check valve shuts off flow when pressure drops below a preset value, preventing lines from draining to their lowest point. Finally, the precision-molded flow channel is highly resistant to clogging. Use the Netafim PC Jr when you need accurately controlled water application.