Float Switch, Vertical - 

The RSF53Y100RC is a Vertical Float Switch made of nylon (polyamide), with internal mount. This RSF50 series float switch is compact vertically mounted devices with a single switch point. Mounting is in the top or bottom of the tank from the inside, so requires access to the inside of the tank. The switch action may be reversed by removing the float, inverting it, then refitting to the stem. Designed with nitrile gasket to suit most commonly used liquids. Typical applications are printing systems and chemical dosing equipment.