Check the listing for details. 400GPH Aquarium Commercial Air Pump with Accessories , 6 Outlet/18W. Condition: New. Listed at 29.99 USD. Description :1. Model : ACO-001 : 18W ,25L/min , 6 Outlets, Diameter: 8 mm, 0.020Mpa .2. Material: thick alloy shell, effective heat dissipation; Plate structure, better heat dissipation effect.3. Features: copper gas nozzle, large-diameter gas outlet, even gas outlet; Built-in filter cotton makes the air outlet more pure.4. Portable design: humanized design, portable and convenient; Anti-skid base, anti-skid shock absorption．5. Note ：When using the water pump, it should be higher than the water level, or install a check valve to prevent the water from flowing backwards.Beware of water immersion, sun exposure, and blockage of air inlet and outlet to ensure normal service life.XA.LL.009-FBA Shipping weight : 35oz - 1 FR Envelope