This submersible water pump is epoxy encapsulated, which is safe for your fish and aquatic plants. Itand 39 s excellent for aquariums, hydroponic systems, small fish tanks, water gardens and a variety of other applications. Add more circulation to your aquarium and give your lovely fish a near-natural environment. Features: Adjustable water flow rate: a switch on the side helps adjust the flow rate easily. 6W pump, Max. flow rate is 450L or H, H-Max.(lift height) up to 90cm. Come with 2 water outlet nozzles(0.3in and 0.5in), providing different water flow effects. The reliable and durable motor produces low noise, giving you quiet environment. 4 strong suction cups at the bottom are great for mounting on where both vertically and horizontally. Small size makes it not only easy to hide or disguise but also convenient to disassemble and clean. Perfect for small to medium size aquarium, tabletop fountains, water gardens and hydroponic systems, etc. Specifications: Plug Type: US or EU or UK(Optional) Voltage: US: AC110V EU or UK: AC220-240V 50-60Hz Power: 6W Max. Flow Rate: 450L or H H-Max.(Lift Height): 90cm or 2.95ft Waterproof Grade: IP68 Power Cord Length: Approx. 140-200cm or 4.6-6.56ft Pump Size: 53 x 42 x 50mm or 2.1 x 1.65 x 1.97in Weight(PumpandPower Cord): 195g or 6.9oz Package Size: 11 x 7.5 x 8cm or 4.33 x 2.95 x 3.15in Package Weight: 235-269g or 8.32-9.51oz Package List: 1 x Water Pump 2 x Water Outlet Nozzle 1 x User Manual(English) Note: 1. Please keep the pump operate in the water, otherwise would damage the pump 2. The maximum flow rate is 450L or H there might be a plus-minus tolerance 3. Insufficient power and insufficient frequency would affect the flow rate 4. 450L or H refers to the flow rate without using a water pipe. If connected with a water pipe, the maximum flow rate would less than 450L or H 5. If the water sprays out the container, the flow rate would also less than 450L or H 6. Please clean it regularly in case of debris blockage, the pump would make noises or even make the motor short circuit if blocked by debris.