[High Efficiency: Size: 3.8" L x 2.6" W x 3.3" H; Max Flow Rate: 550 GPH; Power: 30 W; Max Lift Height: 6.5 ft. The submersible water pump brings efficient water circulation. Ideal for fish tanks ponds gardens waterfalls statuary or sumps. Adjustable Flow Rate: There is a sliding switch on its side to manually adjust the water volume. 5 levels of optional water flow rate greatly meet your needs to keep fish lively. Detachable & Quiet: Easy to detach the pump and clean all parts without using any tool. With 4 strong suction cups to greatly minimize vibration the air pump gives out noise less than 35 dB. No disturbance to your daily life. Reliable Construction: The water fountain pump is well constructed with a 30 W highly efficient and energy-saving motor a UL-certified plug and a strong ceramic shaft and bearing. Pump Accessories: The pump comes with 3 nozzles with outer diameters of 1/2" 3/5" and 3/4". The 6-foot long power cord allows the pump to be freely installed anywhere in the fish tank.]