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 fit Zoeller 53-0001 Effluent Pump Automatic Operation--The 004892 repair switch enables automatic on/off operation based on water level, helping prevent flooding and ensuring efficient water discharge Pump Protection--Helps reduce wear and tear by minimizing unnecessary cycling and ensuring proper activation and deactivation, improving the reliability and safety of the pumping system Water Level Regulation--Features adjustable pumping ranges for customized performance based on specific water level needs, assisting in removing groundwater from basement sump pits Sealed Construction--Equipped with a high-quality gasket and sealed design to protect against water and debris intrusion, ensuring reliable switch operation Color: Black Material: Plastic Package Contents: 1x Effluent Pump Switch Kit Note: Light reflection and different display settings may cause slight variations in color between the product and the image. Measurement may vary by +/- 1-3 cm