Johnson Controls A19DAC-1C Strap-On Aquastat, versatile control device designed for HVAC systems, specifically for monitoring and controlling temperatures in heating applications. This aquastat features a temperature range from 100°F to 240°F and operates using a remote bulb sensor, which allows it to accurately sense water or air temperatures in boilers, water heaters, and other HVAC... https://www.partshnc.com/a19dac-1c-johnson-controls-spdt-strap-on-aquastat-100240f