OASE Waterfall Pumps are synchoronous magnetic that are specifically designed to create falls in Water Garden and Pond-free applications. OASE Waterfall Pumps are reliable, energy efficient pumps that excel in hard water conditions. Grounding plate eliminates any chance of stray current entering water for unparalled safety. Replaceable coated magnetic rotors resist scale and poor water quality conditions. Self-cooling, debris flushing rotor chambers keep pumps from overheating in the most demanding applications. Tool-less volute removal makes maintenance fast and easy. The Waterfall Pump 1650 has 120 volts, 0.75 amps and a 1.25" MIPT. It has a 20' power cord and dimensions of 8.5"L x 5"W x 6.25"H and a 1.5"-2" step outlet fitting. The 1650 has a max flow of 1650 GPH and has a 3-year warranty.