Durable Construction: Crafted from robust stainless steel, ensuring longevity and resistance to corrosion Versatile Compatibility: Designed to work seamlessly with 3/4 inch Watts Series 009 M3 systems Complete Kit: Includes essential components like cover O-ring, RV spring, seat, seat O-ring, stem O-ring, and stem and diaphragm assembly Easy Installation: Features threaded inlet and NPT outlet connections for simple setup Efficient Performance: Provides total relief functionality, safeguarding your system from excessive pressure WATTS 009M3 3/4" RELIEF VALVE ASSEMBLY