Automatic flush-valve sensor and solenoid repair parts are components for replacing the proximity sensor, solenoid actuator, and related parts of a toilets automatic flush valve (flushometer). The sensor is an electronic mechanism that works with a solenoid to activate flushing after a set time period or once a user has moved out of sensing range. These parts are commonly used to repair sensors and solenoids that fail to trigger flushing or continuously trigger flushing. Toilet flush-valve repair parts and accessories allow individual components of a commercial flush valve (flushometer) to be replaced rather than the entire valve assembly. Theyre used for routine maintenance and repair of tankless-toilet flush valves, which are commonly found in high-use (more than 30 flushes per day) public, commercial, and institutional restrooms. Signs that a flushometer may need repair include leaking from the valve, water splashing from the bowl during flushing, and toilets that keep running. These toilet flush parts are designed specifically for flush valves and often fit only specific brands or models. This listing is for each. Package Quantity : 1 Item : Toilet Sensor Repair Kit For Use With Grainger Item Number : 4FEU5 Size : - Type : Toilets Sub-Category : Repair Kits and Tools For Use With : Hardwire Valves, Optima Country of Origin (subject to change) : United States