... hex cap, hex plug, weld nipple, barrel nipple, union conical f/f, elbow union conical m/f with best quality and low price.Description of ... union:Features:1> Wax-lost precision casting2> CNC ... lathe process3> Pressure:150 lbProductUnionSize 1/8"-4" DN8-DN100KindUnion Conical M/F,F/F ...