Features: Wide Application: Our boiler relief valve come with Teflon thread sealing tape, which is widely applied in widely applications, including plumbing and heating systems, ensuring the safety and reliability of widely applications. Security: The 30 PSI pressure relief valve is a safety device designed to protect a system from overpressure by releasing excess pressure when it exceeds a predetermined limit, you can ensure that the valve performs its intended function effectively and safely. Specifications: Material: brass, PTFE Color: copper, white Size: Pressure relief valve inlet: 3/4 inch/ 1.9 cm Pressure relief valve outlet: 3/4 inch/ 1.9 cm Package includes: 1 x Pressure relief valve 1 x PTFE tape Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.