This 450 PSI pressure relief valve is an essential component for any gas distribution system. It serves as a safety mechanism to prevent over pressurization, ensuring that your equipment runs smoothly and safely. Specifically designed for use on the Milcarb Fill Gun, it relieves pressure in the event that liquid CO2 gets trapped within the fill gun. With a 1/4 inch NPT connection, this valve is easy to install and integrates seamlessly into your existing system. Trust this reliable pressure relief valve to keep your gas distribution system running smoothly.