3500 gph waterfall pump for high volume waterfall applications. Water cooled - no oil. Ceramic mechanical seal. Has a 1 1/4 mnpt discharge. Use in ponds and water gardens, streams, aeration. Waterfall pumps further benefit fish and plant life by oxygenating water. One year warranty, energy-efficient capacitor-start motor. Pump construction is completely non-corrosive. Size is 3500 Gallon. Dimensions are 7.375 X 7.5 X 12.25 UPC Code = 029753630005