about this article Multi-function filter- It mainly has four functions: sterilization, filtration, pumping and oxygenation Water is continuously pumped to provide filtration, disinfection, circulation, oxygenation and wave formation, which can effectively eliminate contaminants in the aquarium. Thus creating a healthy environment for fish and aquatic plants. Adjustable flow rate-The air intake pipe is designed to adjust the water flow rate, the maximum flow rate can reach 300L\/H The unique rain line design improves the observability and increases the oxygen, which creates a cascading effect. Easy to Assemble and Clean-The aquarium filter pump with powerful suction cup can be stuck to the wall and bottom of the fish tank. The filter cartridge can be easily assembled. Widely Used-The aquarium filter adopts ceramic shaft and copper wire motor, with silent design, the motor rotor runs more smoothly, suitable for fresh water and sea water, safe and durable, energy efficient and effective, and easy to maintain. Product description ?Features 1.The powerful aquarium filter pump simulates the natural environment to generate powerful water waves and ensure complete water circulation through the aquarium filter element. By adding an oxygen nozzle, it can also supply oxygen to the fish tank at the same time. Better protect the growth of aquatic plants and animals. 2. Provide ultra-fine filter sponge, which can automatically absorb feces, residue, impurities and deep filtrate to obtain pure water, which effectively solves the problem of water turbidity and non-circulation caused by fish lack of oxygen. ?Specifications Voltage: 220-240V Frequency Frequency: 50Hz Power: 4W Material: ABS Plastic Quantity: 2 Dimensions: 13.2x2.8x3.8cm ?Package Content 1x Aquarium Filter 1x Ultra-fine filter sponge ?RemaASDue: 1. Avoid using extension cords. 2. The filter is only suitable for 0-35 fresh water (salt water will corrode the equipment) 3. It is necessary to regularly clean the debris accumulated inside the aquarium filter. 4.Install after cleaning, before installing and uninstalling, please turn off the power, then you can clean the filter, please confirm whether the seal between the water sheet and the shaft is tight. ?Warning: There are two installation methods for this aquarium filter: you can choose one and install it according to the installation steps shown in the picture.