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they align seamlessly with paving patterns while ensuring long-term reliability
a fill valve to regulate the pressure
Both options are available in a 100' roll length with 3/4" mesh openings
Specifications Body Material Cast Iron Brand Watts Buy American Act Compliant NO FreeArea 137 IN Lead Free Not In Scope Outlet Connection Size 5 IN Outlet Connection Type No Hub OverflowDome No OverflowDrain Does Not Apply To Product Specification Sheet - RD-100 Large Area Roof Drain
Watts 757-OSY 6 - Part of the 757 Series ZC100F-3NH they align seamlessly with pavingThis 6 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 line