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Designed for installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. A test cock plug is provided to protectagainst fouling caused by insects, dirt and debris. Assembly shall provide protection where a potential non-health hazard exists.<br><br><b>Standards Compliance</b><ul style="margin-top:0px; padding-top: 5px; padding-bottom: 5px;"><li>Unless otherwise noted, applies to 3/4" thru 2" Horizontal</li><li>ASSE&#174; Listed 1015 (Vertical flow-up:1 1/4" thru 2")</li><li>IAPMO&#174; Listed</li><li>CSA&#174; Certified (Vertical flow-up:1 1/2" & 2")</li><li>AWWA Compliant C510</li><li>Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California</li><li>NSF&#174; Listed - Standard 61, Annex G</li><li>Certified to NSF/ANSI 372 by IAPMO R&T</li></ul>

Zurn 1-950XLT2 1 In. FNPT x FNPT Double Check Valve Assembly - 175 PSI - Lead-Free Cast Bronze

1-950xlt2-1-in-fnpt-x-fnpt-double-check-valve-assembly-175-psi-lead-free-cast-bronze

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