Equip your semi to be Ready for the Road Ahead™, with the Grote Service 3/8" Glad Hand, a crucial element that provides a seamless coupling of the service and supply air lines. 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®.