Minimize incorrect tractor/trailer hook-ups with bright, color-coded hoses. 3-in-1 air power line is designed to withstand extremes, has greater flexibility and improved twist resistance compared to other designs. Provides flexible air-connection from frame to axle or between tractor and trailer where exposed to flexing, pulling or impact. Hoses are resistant to gasoline, diesel fuel, oil and commonly used road and cleaning chemicals. UV and ozone resistant. Meets or exceeds SAE and DOT regulations. Designed for operating pressure up to 225 psi. Mounts with Tec-Clamp, no tools needed. 10'L.