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Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
The iron frame is painted black to inhibit rust and will form a protective iron-oxide patina over time
Specifications Lead Free YES Product Group BACKFLOW KITS UPC - 098268044942
Features Converts MNPT to 150 class flange
Z551-4NH-TG
Watts 757-OSY-GXG 2 1/2 - Part of the 757 Series ZC100F-2NH The iron frame is paintedThis 2 1 2 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards and from other contaminants found at the service
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