Oase ProMax MudDrainDrain pond muck with the Oase Promax Muddrain, a high performance pump for sludge removal. Built to handle thick debris, this unit clears your pond floor, improving conditions for fish and plants. An Oase powerhouse for heavy duty pond care. Features: Size: Compact pump design Construction: Tough, high flow materials Performance: Removes mud, boosts clarity Setup: Position and activate