Check the listing for details. Irritec iDrop PCDS w/ CNL Emitter with Barbed Outlet. Condition: New. Listed at 10.25 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. When precision water distribution is required over long distances and uneven or sloping terrain, Irritec's iDrop PCDS (pressure compensating with drop-stop) emitter with CNL feature is what you need. This feature means no drips when the system shuts down. The emitter opens when the system pressure reaches 5.7 PSI, then closes when system pressure drops to 4.3 PSI as shutting down. The fully pressure compensating emitter provides consistent flow over a wide range of pressures. (See detailed specifications linked above on our website.) Available in a variety of flow rates to meet all your needs. Features:Large Turbulent Flow Path means superior clog resistanceTechnopolymer construction ensures durability and resistance to commonly used chemicals and fertilizersDurable, compact design with silicone diaphragm for long lifeColor coded for easy flow rate identificationMultifunction barbed outlet accepts 1/4" (.170" ID x .250" OD) micro-tubing or drip manifoldsLow CV's of 2.5% or LessDrop-Stop anti-drip system (CNL feature)