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Designed for installation on indoor and outdoor point of use applications to protect against backsiphonage of contaminated water into the water supply. During start-up andoperation a separate diaphragm seals the air inlet from the water supply preventing spillage. The assembly is designed for use under constant pressure and provides protectionwhere a potential health hazard exists.<br><br><b>Standard Compliance</b><ul style="margin-top:0px; padding-top: 5px; padding-bottom: 5px;"><li>ASSE&#174; Listed 1056</li><li>IAPMO&#174; Listed</li><li>CSA&#174; Certified</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 34-460XL 3/4 In. FNPT x FNPT Spill Resistant Pressure Vacuum Breaker - 150 PSI - Cast Bronze

34-460xl-3-4-in-fnpt-x-fnpt-spill-resistant-pressure-vacuum-breaker-150-psi-cast-bronze

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