WATER FLOW CONTROL -- An adjustable knob allows control of the water flow rate, enabling desired water pressure. Maximum flow rate: 550 GPH (2000 L/H). The impeller shaft is made of stainless steel for durability. STRONG POWER & HIGH LIFT -- Operates at 110-120V. Maximum lift height: 7.2 ft. Model number: SML-630. Features a 30W high-efficiency motor for energy savings. Lift height refers to the maximum vertical distance water travels when connected to the nozzle (ensure secure and tight connections). 3 NOZZLES -- Includes three nozzle options: 0.51", 0.62", and 0.75" to customize water flow. Threaded fittings provide stability. Nozzles are detachable and easy to clean. SUCTION CUP & 5.9 FT POWER CORD -- Power cord length allows for flexible installation. Equipped with 4 strong suction cups to secure the pump in place, suitable for vertical or horizontal placement on aquarium walls. WIDELY APPLIED -- Designed to circulate and aerate water, enhancing the aquatic environment for fish and turtles. Suitable for use in aquariums, fountains, spouts, and hydroponic systems. Meets UL 1081 safety standard. FEATURES -- Built for reliable, ultra-quiet operation with low power consumption. Stainless steel impeller shaft ensures long service life and strong performance. Adjustable flow control knob allows customized water pressure. Pump is easy to disassemble for cleaning. 4 suction cups provide secure mounting. WIDELY USED -- Ideal for water circulation and aeration in aquariums, fountains, spouts, and hydroponic setups. Can also be used in garden fountains or water features. NOTE -- Clean regularly to prevent debris buildup and noise. Do not operate the pump dry. Submerge the pump in water before powering on. Turn off power before performing maintenance or water changes. For cold water use only.