Self-Cleaning Piston with integral wiper spring significantly reduces clogging and maintenanceSelectronic® Proximity System with universal sensor provides hygienic, "hands free" operationState-of-the-Art Electronics prevent ghost flushingDezincification Resistant semi-red brass alloyFully Mechanical Manual Override Button can flush the valve without powerFail-Safe: Valve automatically closes upon loss of power or water pressure and does not need to be resetAdjustable Sanitary Flush cleans the fixture & maintains the trap seal.Chemical resistant EPDM Seals for extended lifeAdjustable tailpiece for rough-in flexibilityCan be installed left or right handedAll exposed parts are chrome-plated