Regal Adjustable Ground Joint Retrofit Flushometers The Flushometer replaces existing valves that incorporate Ground Joint Tailpiece connections without having to replace the supply Control Stop.Quiet, Exposed, Diaphragm Type, Chrome Plated Closet Flushometer with the following features:ADA Compliant Metal Oscillating Non-Hold-Open HandleAdjustable Ground Joint Tailpiece (supply stop not included)Vacuum Breaker Flush ConnectionHigh Copper, Low Zinc Brass Castings for Dezincification ResistanceNon-Hold-Open Handle and No External Volume Adjustment to Ensure Water ConservationLow Consumption flush accuracy controlled by Para-Flo TechnologyHandle Packing, Stop Seat and Vacuum Breaker molded from PERMEX Rubber Compound for Chloramine Resistance