This external canister filter has high efficiency filtration, mute work, large flow and strong seal. It can remove the excreta and clean the water. Suitable for the growth of fish. Features: 1. Made of high quality plastic material, non-toxic and harmless, wear resistant and durable. 2. It can filter impurities in fish tanks, remove the excreta and keep water clean. Provide adequate oxygen, no hazardous substances, no pollution, suitable for the growth of fish 3. High effeciency, enery-saving, large flow, low noise, strong seal(no leaks). 4. Inlet switch valve design, can adjust the flow. Ideal for small and medium sized fish tank. HW-602B fit for less then 0.4m fish tank, HW-603B fit for less then 0.6m fish tank. 5. Easy to install, suitable for fresh water, seawater aquarium and seaweed tank use. Specification: Condition:100% Brand New Material: Plastic Color: As Pictures Shown Type: HW-602/ HW-603/HW-602B, 220V / HW-603B,220V(optional) HW-602: 19.2cm/7.6in(Length) Diamter: 10-13cm/3.9-5.1in HW-603: 23.5cm/9.3in(Length) Diamter: 13-17cm/5.1-6.7in Weight: Approx.559g~1659g/19.7oz~58.5oz Package list: 1 * External Canister Filter (HW-602/603: NOT INCLUDE the pump and accessory HW-602B/603B: INCLUDE the pump and accessory) Note: 1. This product does not have motor, motor needs to be purchased separately. 2. Please allow 0~1 inch error due to manual measurement. Thanks for your understanding. 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .