Watts 774-NRS 3 - Part of the 774 Series Pipe Connection Fitting and work surfaces

and work surfaces

ZB415J-2NH

Built-in gravel stop to maintain drainage performance

while the internal scrim reinforcement enhances its overall durability

ZN1960-2IC

Watts 774-NRS 3 - Part of the 774 Series Pipe Connection Fitting and work surfacesThis 3 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated 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 hazard applications and from other contaminants