Manufacturer Part Number: 40413 "The Isolator 4041 Uni-flange ball valve is made of brass for enhanced durability. Ball valve with protective hard chrome finish perfectly fits the pipe having a nominal size of 3/4 inch and is suitable for residential or commercial applications. Ball valve with FNPT end connections has a working pressure of 600 psi WOG and withstands a temperature rating of 100 deg F. Ball made of HCP brass prevents electrolysis and eliminates galvanic corrosion. Blow out proof stem eliminates the possibilities of hazards due to pressurization in the valve. Flexing reinforced Teflon seat design of ball valve ensured leak-tight seal in both low and high pressure systems. Ball valve includes standard wing style handle with vinyl-coated sleeve. Ball valve comes with stainless steel lever, flange mounting nuts and bolts to offer additional corrosion resistance for installations in damp locations. Full port design of ball valve offers minimal flow restrictions. Ball valve is ISO 9001:2000/ANSI specified."