Hex Nipple, 1/2" MPT x 1/2" MPT, DisplayHex Adapters provide a close nipple in male pipe x male pipe thread connections with a hex for use with a wrench. This differs from a standard all-thread close nipple, in that it allows for an easier installation.Brass ConstructionMade in USAProduct InformationDescriptionHex Nipple, 1/2" MPT x 1/2" MPT, DisplayUPC ID029292197847