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NominalSize: 2-1/2 in Zurn® Wilkins 212-475 Zurn® Wilkins 212-475 Reduced Pressure Principle Backflow Preventer, 2-1/2 in, Flanged, Contains Lead |
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NominalSize: 3 in Zurn® Wilkins 3-475 Zurn® Wilkins 3-475 Reduced Pressure Principle Backflow Preventer, 3 in, Flanged, Contains Lead |
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NominalSize: 4 in Zurn® 475-4 Zurn® 475-4 Backflow Preventer With Integral Supervisory Switches, 4 in, Flanged, Lead-Free |
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