10pcs Pneumatic Fittings Connection 3/8 1/2 1/4 1/8 inch to 12mm 10mm 8mm 6mm 4mm 5/16 5/32 air hose Tube Pipe Fitting Connector

10pcs Pneumatic Fittings Connection 3/8 1/2 1/4 1/8 inch to 12mm 10mm 8mm 6mm 4mm 5/16 5/32 air hose Tube Pipe Fitting Connector

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