The 3 Port High Pressure Ball Valve from Buyers Products reliably and easily controls the flow of fluids in your truck's hydraulic system. It's rugged carbon steel construction withstands very high pressures without failing. The valve has a stem that will not blow out in the event of excessive pressure. It also features Buna seals, made of a highly effective sealing compound, which protect the valve from leakage and failure. Choose from a range of thread sizes and maximum working pressure ratings to fit your needs. Note: The valve is not suitable for steam or potable water applications.