【FITS WITH】 BPV31 1/4 inch, 5/16 inch, 3/8 inch outside diameter pipes,If you have any uncertainty, If you have any questions after receiving the product, please feel free to contact us
【EASY TO INSTALL】Before installing valve, make sure that the special compound seal“O” ring is in position ① Position both halves of valve on the tube with the proper insert ②Install the three socket head screws and tighten evenly ③To pierce line, tighten valve stem clockwise with hex wrench
【To test or charge】Remove cap and connect charging hose to open valve turn valve stem counter-clockwlse with hex wrench.Make sure valve is closed before disconnecting hose.Reinstall cap for added protection