Royal ® OPTIMA ® SMOOTH Flushometer Exposed, Battery Powered, Sensor Activated, Royal ® OPTIMA ® SMOOTH Water Closet and Urinal Flushometers for floor mounted or wall hung top spud bowls with the following features:FlushometerPERMEX Synthetic Rubber Diaphragm with Dual-Filtered Fixed BypassADA Compliant Metal Oscillating Non-Hold-Open Handle with Triple Seal Handle Packing1 I.P.S. Screwdriver Bak-Chek ® Angle StopFree Spinning Vandal Resistant Stop CapAdjustable TailpieceHigh Back Pressure Vacuum Breaker Flush Connection with One-piece Bottom Hex Coupling NutSpud Coupling and FlangeSweat Solder Adapter w/Cover Tube and Cast Wall Flange w/Set ScrewHigh Copper, Low Zinc Brass Castings for Dezincification ResistanceNon-Hold-Open Handle, Fixed Metering Bypass and No External Volume Adjustment to Ensure Water ConservationFlush Accuracy Controlled by CID TechnologyDiaphragm, Handle Packing, Stop Seat and Vacuum Breaker molded from PERMEX Rubber Compound for Chloramine Resistance