... .Tube Size:in Inch,metric tube 3.NPT,BSP,Metric straight male Tube fittings,plastic,brass Metric one touch Tube fitting ... tube fitting2.Size:in Inch,metric tube3.NPT,BSP,Metric straight male4.Material : Nylon ,plastic5.Model:Pneumatic TPC6-02 Pneumatic fitting ... Standard Pipe Parallel Thread Metric one touch style TPC6-02 straight male tube fitting