PondMaster PMK1250 250 GPH Pond Pump/PM1000 Filter Combination. This pump and filter combination is ideal for small to medium ponds up to 600 gallons. It features an energy efficient magnetic-drive pump that provides mechanical, biological, and chemical filtering of harmful compounds. The easily rinsed or changed filter is oil free and fish safe. Includes Bell and Fleur De Lis fountainheads, a 10-foot power cord, tubing, and fittings.