This Rheem Temperature and Pressure Relief Valve is a safety device designed for use in water heating systems. The valve operates by releasing water when the temperature or pressure within the system exceeds safe levels, thus preventing potential damage or failure. It is constructed from durable brass material, ensuring longevity and resistance to corrosion. The valve features a 3/4 inch NPT (National Pipe Thread) inlet and outlet connection size, making it compatible with standard plumbing fixtures. Its relief setting is calibrated at 150 PSI (Pounds per Square Inch) and 210 degrees Fahrenheit, which are industry-standard safety thresholds for residential water heaters.