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Replacement O-Ring 151120
On-Winding Current and Temperature-Sensitive Overload to Protect Against Costly Burnout
1/2 HP D98 is the industry standard when you need a higher flow sump pump
Approximately 1 Hour Cure Time
with several specialized units for other voltage ranges and unique applications
Zoeller 57-0033 Model BN57 Sump Pump 0.33 HP 115V 1PH 9' Cord Automatic Manufacturers__Hydromatic Pump__Municipal__Submersible Solids Handling Pumps__SB4S/SB4SD__SB4SD Replacement O-Ring 151120Zoeller Model BN57 Sump Pump Description Our Model BN57 Effluent Pump is designed to remove unwanted water in sump or septic effluent applications. The professional grade, 3 10 HP Model 57 is known for its dependability. The BN57 is a nonautomatic pump equipped with a single piggyback float switch. The piggyback float switch allows you to set the on and off point of the pump in the field. This is ideal in an application with a deep sump pit or pump