Check the listing for details. Jain Irrigation Inc Clik-Tif PC Dripper w/CNL, 0.5 GPH. Condition: New. Listed at 10.71 USD. Please Note: The CNL (closed no leak or check non leak) feature means the dripper will open at a specific pressure once the line fills with water and then close at a specific pressure when the system shuts down. This design is not recommended in a low pressure gravity feed drip system. There is not sufficient consistent pressure to operate properly. The new Clik-Tif PC Dripper from Jain, with the CNL (check non-leak) feature, has a recommended operating pressure range of 10 - 40 PSI. Making this the perfect option for commercial nursery and greenhouse applications or in orchards and vineyards where long runs and precision watering is needed. The CNL feature prevents drainage in low places by closing the emitter once pressure drops to 4.3 PSI. Durable, chemical resistant construction with a cross shaped inlet that reduces clogging by blocking debris from entering the emitter. The large water passages and turbulent flow design allow continual clearing and flushing of debris to further prevent clogging. These drippers are also a great choice for soil-less systems and pulse irrigation.Features:Nominal Compensating Pressure Range: 7 to 60 PSIOpens at 11.4 PSI and closes at 4.3 PSICoefficient of Variation (Cv): < 3%Large water passagesHigh grade plastic material for precision, durability and longevity