Tetra Pond Debris-Handling Pump, Energy Efficient, UL Listed CONTINUOUS-OPERATION POND PUMP: For powering pond waterfalls and streams with rugged debris-handling impeller that can pass debris up to 1/4 inch in diameter. CLOG-FREE PERFORMANCE: Large basket minimizes blockage and maintenance. ENERGY EFFICIENT: Unidirectional impeller and motor. WEAR-RESISTANT: Motor has anti-corrosive ceramic shaft for longer life. SIZED FOR YOUR POND: For ponds up to 3,000 gallons.