Equip your semi truck to be Ready for the Road Ahead , with the Power Products 1/2" x 1/2" Female Brass Pipe Ball Valve, a crucial piece that provides advanced fluid control. By using a sophisticated design, this replacement valve is able to regulate the flow of water, fuel, air, and other fluids in numerous types of systems. Constructed with rugged materials to release or contain high-pressure fluids that have been checked by a gauge. FleetPride is your First Click in Heavy Duty .