4" Double Check Assembly OSY Valve Fire Protection Backflow Preventor Valve reliable water supply Easy Installation: Designed for straightforward

Easy Installation: Designed for straightforward setup

enhancing overall system responsiveness and reliability—key factors to protect lives and property effectively

Certified Safety: UL Listed and FM Approved

providing superior mechanical durability and resistance to corrosion under high-pressure fire system conditions

Its inline modular design

4" Double Check Assembly OSY Valve Fire Protection Backflow Preventor Valve reliable water supply Easy Installation: Designed for straightforwardThe 4" Double Check Assembly with OS&Y Valve from Ames Backflows is an essential backflow preventor engineered specifically for robust fire protection systems. This critical component ensures a secure and compliant water supply by effectively preventing backflow contamination, making it ideal for both new installations and upgrades in commercial and residential properties. Durable Construction: Crafted from high grade materials, this assembly is built