Features: Suitable for 6mm PU hose. Can be used to adjust the volume of the gas in the DIY equipment. It's used in a cylinder or in a DIY generator to control two gas pipes. This product can be used to adjust the gas output in cylinders and disposable carbon dioxide equipment. It's connected in series with the natural adjustment CO2 generator valve to increase the accuracy of the adjustment can also be used as a switch directly. Specification: Condition:100% Brand New Material: Plastic Color: White Size:Two interface distance: Approx.52mm/2.05inch Package List: 1*Regulating Valve Note: There is a small skill to adjust the size of the gas output. It is difficult to adjust from large to large, because the air pressure needs to be transmitted in the hose, which will cause a delay. First tighten the trim valve, and then stop the gas. Then slowly unscrew the trim valve, which makes it a lot easier to adjust. The product has separate air inlet and outlet, pay attention to the arrow logo. 1Suitable for 6mm PU hose. 2Can be used to adjust the volume of the gas in the DIY equipment. 3It's used in a cylinder or in a DIY generator to control two gas pipes. 4This product can be used to adjust the gas output in cylinders and disposable carbon dioxide equipment. 5 ?It's connected in series with the natural adjustment CO2 generator valve to increase the accuracy of the adjustment can also be used as a switch directly.