A 15-foot air coil set in red and blue, used as the combined service and emergency air brake lines connecting a tractor to a trailer. The two-color coiled hose set (red for emergency, blue for service) comes with 12-inch leads on each end as standard, with a 40-inch lead variant available under 179.3003.15-40. Measuring roughly 17"L x 14"W x 4.25"H and weighing about 3 lbs, it is a standard dual-line air coil assembly for Class 8 trucks and trailers.
