Boyu - Air Pump Adjustable Four-Outlet Diaphragm Pump with Potentiometer Adjustment Variable Airflow Suitable for Aquarium, Aeration, Hydroponics.

BOYU Adjustable Air Pump S-4000B - 768L/hr Voltage: 230 V / 115 V AC, 50/60 Hz Maximum Power: 9 W Maximum Air Flow Rate: 768 L/hr Maximum Pressure: 0.012 MPa Four Outlets: Ø3.2 mm Dimensions: L 206 mm x W 149 mm x H 96 mm Weight: 1.55 kg 768 L / hour Adjustable Airflow Diaphragm Air Pump, Four Ø4 mm outlets, ideal for: Aquariums and Fish Tanks Aeration of tanks and reservoirs Hydroponics applications BOYU S Series air pumps are versatile and suitable for all types of water aeration. Highly energy efficient and very quiet in operation. Airflow is adjustable by means of a thumbwheel-controlled potentiometer. The high polymer composite rubber diaphragm gives an excellent airflow and a long working life. The sleek, attractive ABS body casing has rubber feet to prevent transmission of vibration. Installation: Position the air pump so that it is above the maximum water level, to prevent water from entering the pump via the airline due to syphonic action. Connect 3.2 mm airlines to the