Zoeller M57 Sump / Effluent Pump with 9′ Cord — Model 57-0001
The Zoeller M57 is a rugged 1/3 HP cast iron submersible sump pump designed for reliable residential dewatering. Built with Zoeller’s field-proven motor and automatic switch, the M57 delivers consistent performance for basement sump pits and crawl spaces that demand long-term dependability.
Key Features
- 1/3 HP permanently lubricated motor for continuous-duty reliability
- Cast iron switch case, motor housing, and pump housing for long service life
- Integral float switch for automatic operation
- Thermoplastic base helps resist corrosion in demanding sump conditions
- Tested and assembled in the USA 100% Factory Tested – every pump is submerged in water and tested at the factory to ensure that it performs as expected when you receive it
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Solids Handling: 1/2″ (12 mm) spherical solids
Best For
- Residential basement sump pits
- Crawl space drainage
- General dewatering applications
- Homeowners needing a dependable primary sump pump
Specifications
| Model / SKU | 57-0001 |
| UPC | 053514024055 |
| Horsepower | 1/3 HP |
| Cord Length | 9 ft |
| Pump Type | Submersible Sump Pump |
| Housing Material | Cast Iron |
| Discharge Size | 1-1/2″ NPT |
| Operation | Automatic Float Switch |
Performance & Sizing
Refer to the pump curve on the spec sheet for flow rate vs. head height. The M57 is ideal for standard residential sump pits 18″ or larger.
Common Questions
Q: Does the M57 include a float switch?
A: Yes, it features an automatic float switch for worry-free cycling.
Q: Can this pump run continuously?
A: The M57 is designed for sump applications and can run as needed, but should not be used as a continuous-duty fountain or waterfall pump.
Q: What size basin do I need?
A: Zoeller recommends a minimum 18″ diameter sump pit for proper switch clearance and cycling.
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