A 50-foot bulk coil of rubber air brake hose with a 3/8" inner diameter and 3/4" outer diameter, rated for 225 PSI working pressure and meeting SAE J1402 and DOT FMVSS 106 requirements. Sold as a bulk roll rather than a pre-assembled line, it's meant to be cut to length and fitted with the appropriate ends for building or repairing air brake lines on trucks and trailers.
