Stainless steel check valve pneumatic fitting 

A pneumatic push-in fitting male straight check valve is a type of valve used in pneumatic systems to control the flow of air. It is designed to be easily connected and disconnected from tubing or hoses without the need for tools. The male straight check valve has a one-way valve that allows air to flow in one direction while preventing backflow in the opposite direction. This helps to maintain the pressure and efficiency of the pneumatic system.

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