Febco LFFRK 850 886V D 2 1 2 3 Part of the RK LF860 LF866 LF870V 876VST LF876V LF880V LF886V Series Z100F 3NH Specifications Buy American Act Compliant Specifications Buy American Act Compliant NO Kit Type Repair Kit Lead Free YES Product Group P & H KITS UPC 098268103588 This 8 inch N pattern reduced pressure zone assembly backflow preventer helps prevent the reverse flow of fire protection substances and 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 Fits 2 1 2 and 3 inch double check valve assembly and double check detector assembly No special tools required for servicing