3/8"x24 thread, for the majority of high Pressure pipes.
 
Part Name: Female Brake Pipe (Brake Line) Union, Plated Steel
AlfaStop Product Code: 9BRG108
Original Alfa Romeo Part No: 
Model: Guilia 101 Series, Guilia 105 Series, Giulietta 750 & 101
Quantity Per Car: As Required