The Gardena Master Unit 2000 is the starter component of the Gardena Micro-Drip-System. It is designed for filtering water and reducing pressure to the optimum level for the irrigation system.Features and Benefits• Easy pressure reduction - The Gardena Master Unit 2000 reliably reduces the water pressure to approx. 1.5 bar for the optimal operation of Drip Heads and Spray Nozzles.• Flexible - Thanks to the fitting and an adaptor, the connector can be flexibly used for both the 4.6 mm (3/16") Supply Pipe and the 13 mm (1/2") Connecting Pipe.• Easy installation - Through the patented "Quick & Easy" connection technology, all components can be effortlessly combined and easily separated again if required.• Filtered water - Thanks to the large-volume filter, the water is pre-filtered.The water flow is approx. 2,000 litres per hour