These multi-chamber box filters are great value. They come complete with a UVC for clear water & a top outlet so they can be partially buried. High quality foams & biomedia are included too. When you add a pump you'll get a Pond Kraft filter pump or a Pond Kraft fountain pump. All pump & filter kits come with FREE 5m hose & clips. for additional information on the Pond Kraft Box Filter. Model G/fish Pond Size ltr Max Flow lph UV Wattage Outlet Size mm Price 6000 4000 3000 9 50 £79.99 9000 6000 4500 11 50 £99.99 12000 8000 6000 18 70 £114.99 Add a pump & save: Pump Price Save Pond Kraft 2000 £109.99 £24.68 Pond Kraft 4500 £149.99 £53.96 Pond Kraft 6500 £164.99 £73.96