Brand new 25-50 PSI field adjustable, Non Code 1/4" NPT pressure relief valve. This is a high quality relief valve that can easily be adjusted to any pressure between 25 and 50 PSI. The knurled thumbscrew and jam nut make adjustments easy and repeatable. This valve can be used in a variety of applications and has a max temperature rating of 250°F. This relief valve is made of solid brass and has an inner silicon rubber seal and a zinc plated music wire spring.