Aquarium with external filter barrel High-efficiency water purification / quiet energy saving / multi-layer filtration Circulating water purification, energy saving energy and energy saving, silent filtration, multi-layer filtration, sealed and waterproof materials, environmentally friendly Rapid water purification by filtering layer by layer, built-in multi-layer filter cotton, materials filters can be added to improve the filtering effect and effectively purify the water "Core" sleeps quietly and naturally High-strength wear-resistant shaft core, special noise reduction design, micro-motor, with permanent magnet rotor, noise reduction and noise reduction Environmental protection materials are safe and secure, high-quality ABS engineering plastics quality are environmentally friendly, wear-resistant and more durable Built-in circulating water pump, self-contained circulating water pump, no need to purchase an additional water pump (only self-contained water pump B series powered) Adjustable flow valve, water inlet switching valve design can also be used as a control valve (standard with 2 inlet control valves and 16 mm inner diameter outlet) Model: LW-602B Rated voltage: 220V Rated frequency: 50Hz Water pump power: 6W Head: 0.85 meter Flow: 400L/h Water inlet and outlet diameter: 12 mm Power cord length: 1.4 meters Size (length X width there will be 1-3cm error, please refer to the actual product received!