Watts 774-DNRS-S 6 - Part of the 774 Series Strata Systems multiple rolls can be seamlessly

multiple rolls can be seamlessly joined using our specialized HDPE tape

ZB415M-4NH

and reliable drainage

Integral stainless steel valve seat

and finishes to suit diverse project needs

Watts 774-DNRS-S 6 - Part of the 774 Series Strata Systems multiple rolls can be seamlesslyThis 6 inch 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 under continuous pressure service and protection at cross connections identified as non health hazards and from other non toxic