【High quality】 This aquarium air flow distributor is made of premium stainless steel, with smooth surface, durable and sturdy, with long service life. 【Easy to use】 Our stainless steel aquarium air pump accessories equipped with the flow control valve, precisely adjust the air flow, easy operation. 【Shunt gas】 Oxygen aeration pump accessories can be used for shunt gas. It could transform the airflow from 8mm to 4mm. 【Various Type】 This stainless steel air regulating valve has several types, you can choose according to your needs. 【Wide Use 【This aquarium air regulating valve is used for aquarium and aquaculture applications. The pneumatic lever valve can be connected to the aquarium piping. Product description Specification: Condition: 100% brand new Material: stainless steel Color: as pictures shown Type: 2-way, 4-way, 6-way (optional) Length: 2 way = 3.7cm / 1.5 inch, 4 way = 7.7cm / 3 inch, 6 way = 11.5cm / 4.5 inch Suitable pipe: inlet fitting with 8mm inner diameter pipe; 4mm