Brand new field adjustable, Non Code 1/4" NPT pressure relief valve kit. This is a high quality relief valve that can easily be adjusted to any pressure between 25 and 200 PSI. This valve kit comes with 4 springs. These springs are easy to change out and give you the ability to easily alternate relief pressure anywhere from 25-50, 50-100, 100-150, and 150-200 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.