The product is a 3/4" valve manufactured by Gh, designed for use in hydraulics, pneumatics, pumps, and plumbing systems. It is a manual valve operation type, suitable for applications requiring high pressure and temperature resistance. The valve is made with CF8M and SS-SS-DELRIN materials, with the ability to withstand up to 3000psi at 120 degrees Fahrenheit. This product is ideal for industrial settings where reliable and durable valves are essential for efficient and safe operations. I don't think it is used but I am unsure, so it is being sold as used. T23s