G2 Optima Plus Exposed Battery Powered Squat Toilet Flushometer Quiet, Exposed, Diaphragm Type, Chrome Plated Closet Flushometer for either left or right hand supply with the following features:PERMEX Synthetic Rubber Diaphragm with Dual Filtered Fixed BypassFlex Tube Diaphragm designed for improved life and reduced maintenance ADA Compliant OPTIMA Plus ® Battery Powered Infrared Sensor for automatic “No Hands operationInfrared Sensor with Multiple-focused, Lobular Sensing Fields for high and low target detectionIsolated Latching Solenoid Operator, isolates magnetic components from water contactEngineered Metal Cover with replaceable Lens WindowUser friendly three (3) second Flush DelayCourtesy Flush Override ButtonFour (4) Size AA Batteries factory installed “Low Battery Flashing LEDInfrared Sensor Range Adjustment ScrewInitial Set-up Range Indicator Light (first 10 minutes)1 I.P.S. Screwdriver Bak-Chek Angle StopFree Spinning, Vandal Resistant Stop Cap Adjustable TailpieceHigh Back Pressure Vacuum Breaker Flush Connection with One-piece Bottom Hex Coupling NutSweat Solder Adapter with Cover Tube and Cast Set Screw Wall FlangeHigh Copper, Low Zinc Brass Castings for Dezincification ResistanceFixed Metering Bypass and No External Volume Adjustment to Ensure Water ConservationFlush Accuracy Controlled by CID TechnologyDiaphragm, Stop Seat and Vacuum Breaker to be molded from PERMEX Rubber Compound for Chloramine resistance