Ensure your semi is Ready for the Road Ahead™ with a seamless coupling of the service and supply air lines, with the Phillips 45° Emergency 3/8" Swinger Glad Hand. To quickly disconnect the air lines, this replacement coupling features an interlocking design that requires no specialized tools or advanced skills to uncouple. Fashioned with a durable design to tolerate extreme air pressure. FleetPride is your First Click in Heavy Duty®.