Versatile Pump: Measures 2.1"L x 1.7"W x 1.3"H (check dimensions carefully!). Suitable for indoor and outdoor use, such as bird bath, sculpture cleaning, fountains, aquariums, etc. Adjustable Water Flow: Maximum throughput: 80 GPH (300 L/H). Maximum lifting height: 2.4 feet. Power: 4 W. Its rotary knob gives you the freedom to control the water flow according to your needs. LONG LIFE: The pump can work for more than 20,000 hours thanks to the ceramic impeller shaft and epoxy protection. Tough enough to withstand 24/7 operation. Removable and Quiet: The pump can be easily removed and cleaned without the use of tools. And 3 strong suction cups hold the pump stably and keep it quiet while working.