Great Compatibility--The 004892 Effluent Pump Switch is compatible with Zoeller 50 and 90 series pumps, including models 53, 55, 57, 59, 97, and 98. Designed to work with Zoeller 53-0001 Effluent Pump Automatic Operation--The 004892 repair switch enables automatic on/off operation based on water level. Helps prevent flooding and ensures efficient water discharge Pump Protection--Minimizes unnecessary cycling and ensures proper activation and deactivation, reducing wear on pump components. Improves reliability and safety of the pumping system Water Level Regulation--Features adjustable pumping ranges for customization according to water level requirements. Assists sump pumps in removing groundwater from basement sumps Sealed Construction--Equipped with a high-quality gasket and sealed design to keep water and debris from interfering with switch operation Color: Black Material: Plastic Package Contents: 1x Effluent Pump Switch Kit Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.