Combination of mechanical biological cleaning and effective UVC technology Including OASE Clear Water Guarantee Ideal for supplying higher elevated watercourses A patented cleaning function integrated in the cover facilitates cleaning of the filter Quick release provides easy filter opening and closing for maintenance purposes It can be buried for almost invisible integration in the garden Supplied with all hose connections for fast and trouble free installation Technical Data Dimensions: 225 x 335 mm Rated Voltage: 230 V / 50 Hz Power consumption UVc: 11 W Power cable length UVc: 3 m Weight: 2.5kg Warranty: 2 Years Number of blue filter foams: 1 Number of black filter foams: 2 Number of bio-media: 0 Pollutant level indicator: Yes Temperature display: No Inlet connections: 19 / 25 / 32 / 38 mm Inlet connections:  ¾\', 1\', 1 ¼\', 1 ½\' Connections, outlet: 19 / 25 / 32 / 38 mm Outlet connections: ¾\', 1\', 1 ¼\', 1 ½\' Max. operating pressure: 0.20 bar Suitable for ponds up to max.  4.0 m3 Suitable for ponds with fish stock: 2.0 m3 Suitable for ponds with koi: 1.0 m3