Specifications Max flow rate: 400gph(1500L/H) Max lift height: 6.56ft/2m Length of power cord: 7.2ft/2.2m Fountain pump voltage is 110 V-120V/50-60Hz 3 nozzles for your choice-0.51inch/13mm, 0.62in/16mm, 0.75in/19mm Size: 3.2*2.8*2.3inch it is compact but powerful. 4 individual powerful suction cups help keep the pump in place, so you can stick it on the right side of the aquarium, either vertically or horizontally. Adjustable water flow rate: this fountain pump has an adjustable knob to control the water flow rate. The impeller shaft of our submersible pump is stainless steel, strong driving, long working life. The fountain pump is easy to detach to clean. Note Please do not use the pump without water. keep the water clean or clean the pump. Three different sizes nozzles are provided. If you use the smaller one, the maximum flow rate would less than 400GPH. Please use socket with stable voltage and keep the motor running within rated power to ensure long lifespan. Package include: 1*25W fountain pump 1*6.56ft Tubing (ID x 1/2-Inch) 1*clean brush 3*nozzles 2*clamp