Watts 957-DOSY-FS 8 - Part of the 957 Series mainline-siltfence This 3/4 inch anti-siphon vacuum

This 3/4 inch anti-siphon vacuum breaker backflow preventer helps prevent the backsiphonage of contaminated water from entering into the potable water supply

It consists of a compact epoxy coated cast iron unibody

It is designed for use in the boiler feed lines of hydronic heating systems and has 1/2 inch quick connect end connections

Specifications Backflow Preventer Type Dual Check Body Finish Chrome-Nickel Plated Body Material Lead Free Brass Body Pattern Inline Brand Watts Buy American Act Compliant NO Bypass No Cap And Tether No Disc Material Silicone EAN 098268434651 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 3/4 IN Inlet Connection Size-Metric 20 MM Inlet Connection Type Female Threaded Inlet Shutoff Valve Type No Shutoff Valve Inlet Thread Type GHT Lead Free YES Maximum Temperature-Fahrenheit 180 Maximum Working Pressure-BAR 10

They are incredibly strong open top catch basin sediment bags and are designed specifically to hang below the storm grate to filter the thickest sediment from stormwater

Watts 957-DOSY-FS 8 - Part of the 957 Series mainline-siltfence This 3/4 inch anti-siphon vacuumThis 8 inch reduced pressure zone assembly backflow preventer help stop the reverse flow of liquids due to backpressure or backsiphonage, where potential health hazard exists. This extremely compact and lighter than a traditional designed assembly is approved for horizontal installation as long as the backflow assembly is installed in accordance with the direction of the flow arrow. This assembly consists of a stainless steel body with a quick access