Dripper 4 Liters/hour Pressure-Compensating, Non-Removable (Pack of 500) The 4 L/h Pressure-Compensating Dripper is ideal for irrigation systems that require a constant and uniform flow rate. This pack of 500 drippers ensures efficient water supply for your crops, with the quality and precision that only an Italian product can offer. Product features: Flow rate: 4 liters per hour. Opens at 0.5 bar pressure. To be inserted into polyethylene pipes or 4 mm inner microtubes. Made in Italy, high quality, non-removable. FAQ: How is the dripper installed? Installation is simple: just insert it into the irrigation pipes and make sure the pressure is correct. What is the advantage of using a pressure-compensating dripper? It ensures the same amount of water for each plant, regardless of the distance from the water source. Can I use these drippers in an existing drip irrigation system? Yes, they are compatible with most drip irrigation systems on the market. What is the lifespan of these drippers? With proper use and regular maintenance, they can last for several years. Does the pack of 500 drippers come with a warranty? Yes, we offer a satisfaction guarantee for complete peace of mind.