Replace your existing handle-operated diaphragm flush valve with the sensor retrofit kit. Its EZ Gear Technology delivers reliability, precision and efficiency to your commercial restroom. Thanks to the dual action of the ceramic disc cartridge and motor gear-driven operation, this upgraded flush valve outperforms and outlasts solenoid operated models, flush after flush. Compatible with 1.28 gpf diaphragm water closet flush valves. It's the ideal solution for retrofit commercial restroom applications.