Ensure your semi is Ready for the Road Ahead™ with a seamless coupling of the service and supply air lines, with the Phillips Emergency 1/2" Straight Mount Glad Hand. By utilizing an interlocking design, this replacement coupling is able to quickly disconnect air lines, without requiring any specialized tools or advanced skills. Forged with a durable design to withstand extreme air pressure. FleetPride is your First Click in Heavy Duty®.