The 4000 pressure filter sets consist of a BioPress pressure filter with integrated UVC and a suitable matching pump. The BioPress sets guarantee clear water and will create a healthy climate for pond inhabitants, and comes with5m of Hose and 2 Hose Clips. Oase Filter Pump 1500.

Technical Information: Biopress Set 4000 Weight: 5.22kg. Dimensions: 235 x 235 x 465mm (LxWxH). Nominal Voltage UVC: 230 V / 50 Hz. Power Consumption UVC: 11 watt. Power Cable Length: 3 metres. UVC Power: 7 watt. Number of Blue Filter Foams: 1. Number of Black Filter Foams: 2. Pollutant level indicator: Yes. Inlet Hose Size: , 1, 1,1. Outlet Hose Size: ,1, 1,1. Max Operating Pressure: 0.2 bar. Suitable for ponds up to max: 4000 litres. Suitable for ponds with fish stock (no koi): 2000 litres. Suitable for ponds with koi: 1000 litres. 

See www.youtube.com/watch?v=0awgQGuRx90  for more information