Features: 1.3 in 1 function, for oxygenation, water pumping, and circulation, both freshwater and sea water can be used. 2.Start about 5cm/2.0in below the water level, and the water level of bottom is about 1?0.8cm/0.4?0.3in. 3.Detachable water pipe for easier replacement, equipped with connection pipes with outer diameters of 11mm/0.4in and 18mm/0.7in. 4.Strong suction cup foot pads at the bottom, non?slip and shockproof, working more quiet. 5.Ceramic shaft, adopts magnetic power design to reduce resistance and wear resistance. Specification: Item Type: Aquarium Submersible Pump Material: PVC Color: As Picture Shown Pump Size: Approx. 8.8x5x7.5cm/3.5x2.0x3.0in Outer Diameter of Water Tube: S: Approx. 11mm/0.4in L: Approx. 18mm/0.7in Weight: Approx. 437.0g/15.4oz Specification: EU Plug 220-240V 50/60Hz Power: 15W Maximum Waterflow: 900H/L Lift: 1.3M How to use: 1. Before use, you must first check whether the rated voltage on the pump is consistent with the actual voltage. 2. This pump can only be used in freshwater or sea water, not in any other liquids 3. Do not work in water above 35℃ or below freezing point, otherwise it will cause damage to the pump 4. Do not let the water pump run idling for a long time, so as not to damage the pump body 5. The power cord of the water pump cannot be replaced. If the power cord is found to be damaged during use, it must not be used any more. 6. When installing or removing and cleaning the water pump, you must first unplug the power plug and cut off the power supply to ensure safety 7. The lowest starting water level of the submersible pump is 5cm/2.0in PackageList: 1 x Aquarium Submersible Pump2 x Water Tube4 x Suctin Cup Note： If you need other sizes of connecting pipes, you need to buy them separately.