Pontec Waterpumps & Accessories Stream pump 633895 - Pontec 50851, The Pontec 50851 Pondomax Eco 1500 is a versatile garden and stream pump designed for efficient water filtration and circulation. It boasts energy-efficient performance, making it ideal for pond and garden applications. Typical uses include serving as a pond pump or filter pump for maintaining clean and healthy water environments. Pontec 50851 Pondomax Eco Stream Pump Energy-efficient Thermal Protected