The 2-1/2" Face 3/4" SWT Dial Type Thermometer from Braxton Harris Co Inc is designed for accurate temperature readings in various applications. With a 2-1/2 inch face, it provides clear visibility of the temperature scale. The 3/4" sweat connection makes installation straightforward in plumbing systems. This thermometer is ideal for monitoring water temperatures in heating and cooling systems, ensuring optimal performance. Built to meet industry standards, it offers reliability and precision for both residential and commercial use.