FEATHERS Application - used to reduce dynamic noise of the pneumatic components or device exhaust. PARAMETER Product Name : Top Adjustable Pneumatic Muffler Body Material : Copper Color : Gold Tone Operation Temperature : 5 ~ 80 Celsius Working Pressure : 0.1 ~ 0.9 Mpa Thread Outer Diameter : 3/8 BSPT Thread Length : 8mm / 0.31 mm Thread Pitch : 19G Hex Length :17mm / 0.67 inch Total Length : 37mm / 1.46 inch Total Size Per Piece : 36 x 17mm / 1.42 x 0.67 inch (H*D) Package Content 2 x Pneumatic Muffler