This Lochinvar pressure gauge is designed to measure pressures up to 250 pounds per square inch (psi). It features a temperature range of 50 to 320 degrees Fahrenheit, making it suitable for various industrial applications. The gauge has a diameter of 3 inches, providing a clear and easy-to-read display. It comes with a half-inch National Pipe Thread (NPT), ensuring compatibility with standard pipe fittings. The Lochinvar pressure gauge is built for durability and precision, offering reliable performance in demanding environments.