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It contains a diaphragm
and water dams for flexible installation
Constructed with a white epoxy-coated cast iron body and featuring a 9⅜″ diameter heel-proof nickel bronze top with hinged grate
purge lever for manual purging
Febco - LF850-NRS DC 4 - Part of the LF850 Large Series Tactile Paving It contains a diaphragmThis 4 inch lead free MasterSeries in line design double check valve backflow preventer assembly is designed for non health hazard applications and prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply due to backsiphonage and or backpressure. It is ideal for protection of non health hazard cross connections or for containment at the service line entrance. This assembly consists of an
