A rubber air line set with flexible grips, 15 feet in length, with 3/8" inner diameter and 1/2" male pipe fittings. The set includes red and blue color-coded lines (emergency and service) for connecting a tractor's air brake system to a trailer. Built from heavy-duty rubber rather than coiled construction, it resists cracking and weather damage, providing a reliable straight air line connection for over-the-road trucking applications.
