Watts 774-NRS 3 - Part of the 774 Series Pipe Connection Fitting while the internal scrim reinforcement

while the internal scrim reinforcement enhances its overall durability

Built-in gravel stop to maintain drainage performance

UPC - 098268394917

The unit is engineered for durability

Watts 774-NRS 3 - Part of the 774 Series Pipe Connection Fitting while the internal scrim reinforcementThis 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