B&K 3/4 in. D X 3/4 in. D Adjustable 90 deg Brass Elbow Nut and Tail Piece

B & K Radiator Elbow Nut, 3/4 in FPT x MPT, 60 psi, Brass, ANSI B1.20.1, With Nut and Tail Piece, For Low Pressure Steam or Circulated Hot Water