... -ring for brass bar manifold Size:14x1/2",16x1/2",18x1/2",20x1/2" FITTING FOR PEX ... PIPEStraight nipple male with O-ring for brass bar manifoldSize:14x1/2",16x1 ... /2",18x1/2",20x1/2" FITTING FOR PEX ... important international institutes.The company has three factories for forging, manufacturing, assembling, testing, packing and ...