Product Description 1. Great Compatibility: The 004892 Effluent Pump Switch fits for Zoeller 50 and 90 series pumps, models including 53, 55, 57, 59, 97 and 98. Perfectly compatible with Zoeller 53-0001 Effluent Pump 2. Automatic Operation: Repair switch 004892 allows the pump to turn on and off automatically based on the water level. Prevent flooding and ensure that water is efficiently discharged. 3. Pump Protection: By preventing unnecessary cycling and ensuring timely activation and deactivation, the switch reduces wear and tear on pump components. Enhance reliability and safety of the overall pumping system. .