Watts 774-DOSY 3 - Part of the 774 Series Woven Fabric Durable Construction: Crafted from rugged

Durable Construction: Crafted from rugged materials to resist corrosion

ZB150F-4NL-C

ZB415E-2NL

Z400SH-4NL

Stainless steel construction provides long term corrosion protection and maximum strength

Watts 774-DOSY 3 - Part of the 774 Series Woven Fabric Durable Construction: Crafted from ruggedThis 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 non toxic