Smith-Cooper International 8175 Series Brass Ball Valve with Drain, Inline, Lever Handle, 1/2" NPT Female, Non-Potable Water Use Only Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Lever handle for manual on/off control PTFE seats and stem packing reduce the risk of leakage Maximum pressure rating of 600 psig for WOG Female NPT threads for connecting to male threaded pipes Product contains brass which does not meet federal and state requirements for drinking water.