[High Quality] This aquarium airflow splitter is made of premium stainless steel, 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, accurately 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 control valve has several types, you can choose according to your needs. [Wide Use] This aquarium air control 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 lanes=3.7cm/1.5in, 4 lanes=7.7cm/3in, 6 lanes=11.5cm/4.5in Suitable pipe: inlet fitting with 8mm inner diameter pipe; outlet suit 4mm inner diameter hose.