Dexter 071-A73-00 3/16" Brass Union FittingDexter 071-A73-00 3/16" to 3/16" inverted flare brass union fitting used in hydraulic trailer brake systems. It connects two sections of steel brake line tubing using standard inverted flare connections to maintain a secure, leak-resistant hydraulic seal. Material: Brass ; Size compatibility: Designed for 3/16" hydraulic brake tubing; Function: Connects two sections of brake line in hydraulic brake systems 3/16" to 3/16"; Replaces Titan-Dico 1287900;