1/2"-20 Pipe Expander Male To 9/16"-20 Inverted Flare Brake

this expander from Aeroflow performance has been specifically designed to suit the majority of aftermarket tandem brake master cylinders that are available on the market today. Such as brake master cylinders and wilwood. Featuring a 1/2"-20 male thread with a female inverted flare 9/16"-20 to accept our inverted flare fitting adapter af348-03-03 (sold separately). Made from stainless steel material and sold individually.