uxcell 2-Piece Pig Male Thread Water Drinking Valve Nipple Set, 1/2-Inch Color: Gold Tone; Size: 70 x 20mm/2.75" x 0.79"(L*D) Material: Steel; Package Content: 2 x Pig Drinking Valve Weight: 118g Male Thread Dia: 19mm Male Thread Size: 1/2"PT