Solve your custom brake line plumbing challenges with our 38-372 adapter, designed to connect a 3/4-20 ABS automotive brake port to a standard 1/2" NPT fitting. This problem-solver fitting is perfect for installing aftermarket components like pressure gauges or switches into the inverted flare seat of a master cylinder. Machined from high-quality materials, this adapter provides a secure, leak-free seal for any custom brake system project.