Dixon® Oxy-Acetylene Adapter, Fitting/Connector Type: Adapter, 9/16-18 x 3/8 in Nominal, Left UNF x MNPT, 11/16 in Hex, 1.3 in Length, Brass, Domestic Dixon® 1580906C Oxy-Acetylene Adapter, 9/16-18 x 3/8 in Nominal, Left UNF x MNPT End Style, Brass, Domestic