Engineered for performance, Zurn®'s AquaSense® ZER EZ Gear-Driven Exposed Sensor Diaphragm Water Closet Flush Valves save water without sacrificing power and precision. The ZER-TM Series Flush Valves are performance engineered with the dual action of the ceramic disc cartridge and motor gear-driven operation. This flush valve has a 1.1 gpf flow rate. Its polished chrome-plated finish, modern top-mount design and quiet diaphragm operation are ideal for new and retrofit commercial restroom applications.