This is the Oase DN75 Discharge pipework for use with the Oase Biosmart, Biotec, Filtomatic and ScreenMatic Pond Filters. The pipework is 70mm in diameter and uses a push fit system for simple and easy water tight seals. Use in conjunction with other DN75 Discharge pipework to make a complete water return from the filter. Genuine Oase pipework 70mm Diameter Pipework
