Homewerks 240-2-34-34 No-Lead Swing Check Valve, Female Thread x Female Thread, Brass, 3/4-Inch Threaded swing check valve 150 psi non-shock wog Cast Brass swing check valve Complies with 0.25 Percent weighted average lead content on wetted surfaces 200 PSI non-shock WOG Meets ANSI / NSF 61 low lead requirements