<p>Product Description Dimensions: 300L: 39 x 36.5 x 124 mm 600L: 46 x 42 x 134 mm 1000L: 55 x 45 x 154 mm Color: Black Material: Plastic<br/>Plug: Round plug (European plug)<br/>1. [Working Principle of Aquarium Filter]: ①Dirty water enters from the filter side; ②Water first flows through the 3-layer filter plate; ③Water flows through the sponge filter box again; ④Clean water enters the filter, ⑤Then flows through the water pump through the front water outlet or the rotating outlet faucet. <br/>2. [Water Change Function]: Our innovative water change design allows for quick and easy water changes. Turn the outlet faucet to replace the water in the tank through the included hose. But only part of the water can be replaced. Aquarium filtration meets scientific fish farming, and all water is not pumped away to allow the fish to adapt. ②Remove the top cover; ③Take out the small accessories; ④Install the back cover and the water outlet pipe; ⑤Install the fountain accessory head on the water change pipe. After plugging in the power supply, the aquarium filter has an effect similar to a small fountain. The water flow also increases the dissolved oxygen in the aquarium. <br/>4. 【Unique Design】: This water change filter pump is the latest design. In addition to the powerful filtering function to provide you with a clean and clear aquarium, the unique rotating water outlet faucet can better meet your water change function needs. The aquarium filter has a wide range of uses. The additional small water outlet plug creates a small fountain effect in the aquarium and provides additional visual enjoyment when filtering. </p></div>