The M8790 side-mounted liquid level switch has a polypropylene stem and a polypropylene float. The M8790 mounts from the inside of the application, through the wall of the tank, and seals using the supplied gasket. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and metal cleaning. It is also a great option for lower temperature food operations up to 105°C. This material is a good choice for commercial appliances and equipment as well.