Feature: 1. Aeration, pumping water and water circulation, 3 in 1 submersible pump. 2. Strong increase oxygen, continuous air bubbles, beautiful, increase oxygen content in water. 3. Relieved insulation, the top of submersible pump is resin casting, good insulation performance and no leakage, safe to use. 4. Multiple silencing technology, mute design, do not disturb sleeping. 5. Non-destructive motor, larger flow, energy and electricity saving, strong power and pumping water easily, high work efficiency. Specification: Condition: 100% Brand New Item Type: Aquarium Filter Pump Optional Model: EP-500B, EP-700B, EP-1000B, EP-1300B Material: ABS Color: As Pictures Shown Voltage: 220V Plug: CN Plug v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} x\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Model Power Head Flow Aquarium(cm/inch) Size(mm/inch) EP-500B 6W 0.7m 500L/h 30-40/11.81-15.75 58x66x335/2.28x2.60x13.19 EP-700B 10W 0.9m 700L/h 40-60/15.75-23.62 71x82x350/2.80x3.23x13.78 EP-1000B 14W 1.1m 1000L/h 60-80/23.62-31.50 78x88x405/3.07x3.46x15.94 EP-1300B 22W 1.9m 1300L/h 60-120/23.62-47.24 105x83x420/4.13x3.27x16.54 Package List: 1 x Aquarium Filter Pump2 x Connecting Pipe1 x Filter Water Cover1 x Corrugated Pipe1 x Hose1 x Hose Clamp1 x Adjusting Knob1 x Aeration Tee Note: The use of oxygen function, such as loud sound that is because the air volume is too large only need to adjust the knob can be significantly improved.