8 outlets allow you to adjust the airflow to 8 aquariums Inlet connector diameter: 10mm, outlet diameter is 4mm. Manually control the flow of vital oxygen or turn the fuel pump on or off. Made of chrome-plated copper, the air never escapes. Not suitable for CO2 systems. Weighs 0.2 kg and measures 16 x 6 x 0.5 cm. Scope of delivery: 1 eight-hole splitter head 10 turns 4 mm, silver
