Get your semi truck Ready for the Road Ahead™ with a reliable way to cut the flow of vehicle fluids, with the Power Products 1/4" Brass Shut Off Cock. Thanks to its ability to quickly seal a valve and prevent the further flow of liquids, this replacement device is the ideal solution to prevent potential disasters while protecting equipment. Engineered with precise measurements to help control a flow rate and optimize energy usage. FleetPride is your First Click in Heavy Duty®.