Hozelock Ecopower+ 10000 (16W) Pond Filter - 1866Achieve consistently clean, healthy pond water with the Hozelock Ecopower 10000, a high performance, above ground filtration system combining mechanical, biological, and ultraviolet purification. Designed for ponds up to 20,000 litres, it's the ideal solution for large garden ponds and fish keeping enthusiasts. Key Features: Triple action filtration mechanical, biological (Kaldnes K3), and 16W UVC Integrated UVC clarifier eliminates green water algae