Grundfos Float Switch

A genuine Grundfos level control float switch built to work with your CU200 or CU202 control unit — automatically starting and stopping your pump based on water level, so your tank never runs dry or overflows unattended. The non-mercury, dual-chamber microswitch design resists shock and rupture, and the sealed polypropylene housing holds up in wells, tanks, and sewage/wastewater applications alike.

Why installers choose this switch

• Genuine Grundfos component — built to pair directly with CU200/CU202 control units, no compatibility guesswork
• Non-mercury, dual-chamber microswitch — resists shock and rupture better than single-chamber designs
• IP68-rated, sealed cable entry — fully submersible, moisture can't migrate into the housing
• Chemical resistant — holds up against alcohol, uric acid, oils, petrol, and common industrial chemicals
• Eccentrically-weighted drop shape — stays stable and accurate even in turbulent water
• Works for both directions of control — tank filling, tank emptying, and high/low water alarms