Features: 1.Multifunctional, included drain water, add water, brush the fish tank, wash the sand. 2.Easy to operate and change water. Low water level availability. 3.The valve is suitable for cleaning all kinds of fish tank bottom sand, widely sand washing range. With two size sand washing connector, fit for different size fish tank. 4.Pollution suction hole design, can suck out the stains on the wall of the tank when changing water, clean and without stains. 5.1.2m high head add water system, from low to high add water without pressure, water can be changed at any time. 6.Independent switch, one-button to start. Specification: Item type: Fish Tank Water Changer Material: ABS Weight: Approx. 756g Color: As picture shown Warning level for sand washing: Approx. 15cm/5.9in Water change warning level: Approx. 4cm/1.6in Power: 18 W Head: 1.2 m Air flow: 530 L/H Voltage: CN 180-240V PackageList: 1 x Water changer host1 x Sand washing connector(large size)1 x Sand washing connector(small size)1 x Filter bag1 x Fish tank brush1 x Water changing tube1 x Water changing tube connection pipe1 x Fixing head1 x Plug1 x Instruction Note： 1. Please pay attention to the drainage pipe before draining, and connect the filter bag when sucking dirt. 2. Suitable for using during cleaning, not for a long time. 3. The system will automatically match the corresponding plug according to the receiving country of the guest.