Outfit your semi to be Ready for the Road Ahead with a seamless coupling of the service and supply air lines, with the Precision Rebuilders Service 3/8" NPT Shut-Off Glad Hand. This replacement coupling allows for a fast and easy disconnection from air lines, without any need for specialized tools or advanced skills. Engineered with a durable design to tolerate extreme air pressure. FleetPride is your First Click in Heavy Duty .