Water Source Llc Rv50-nl 1/2-Inch Pressure Relief Valve No Lead 75 PSI<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Starts to relieve pressure at 75 PSI</li><li>Heavy brass with stainless steel control springs</li><li>Not for use with water heaters</li><li>Solid-brass design meets federal low lead regulations</li><li>Fits 1/2 in. pipe</li><li>1/2 in. discharge port</li><li>Protects Tank Systems From Excess Pressure Build Up</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51VzxFY2SEL.jpg" noproxy>