High Power and High Lift: Maximum lifting height of 6.56 ft with a 25W high-efficiency motor for energy savings. The lifting height refers to the maximum height the water can rise when the water pipe is connected to the nozzle (ensure the joint is sealed tightly). Flow Control: Adjustable knob allows control of water flow to achieve desired water pressure. Maximum flow rate: 400 GPH. Dimensions: 2.3 x 2.8 x 3.2 in. Suction Cup and 5.9 ft Power Cord: Long power cord enables flexible installation. Four strong suction cups on the bottom secure the fountain pump in place, allowing vertical or horizontal attachment to the fish tank. Ultra-Quiet Design and 2 Nozzles: Includes 0.51 in and 0.62 in nozzles. High-quality motor ensures quiet operation. Threaded connections provide added stability. Impeller shaft made of stainless steel for durability and corrosion resistance. Wide Application: Ideal for water circulation and aeration to enhance aquatic environments. Suitable for use in aquariums, fountains, spouts, and hydroponic systems.