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anyone want to buy watts 3 inch 909 backflow

Does anybody want to buy a 3 inch watts 909 lf reduced pressure principle backflow preventer.we are located in ma.
best offer.
Series: 909
Description: Reduced Pressure Zone Assemblies
Size Range: 2 1/2 to 10 in. ( 65, 250mm)

Series 909 Reduced Pressure Zone Assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of FDA approved epoxy coated cast iron body construction with stainless steel trim, bronze ball valve shutoffs, and bronze test cocks. Series 909 features the patented "air-in/water-out" principle for protection during emergency combined backsiphonage and backpressure conditions It is ideal for health hazard cross-connections or for containment at the service line entrance. Check with local water authorities for installation requirements. Maximum Working Pressure: 175psi (12.06 bar).

Product Specification (ES-909L.pdf)
Installation Instructions (1915172.pdf)
CAD Drawing (909 QT Front View)
CAD Drawing (909 NRS Front View)
Repair Kits
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