Best Zoeller 1/3 HP Cast Iron Submersible Sump Pump in 2025

Updated on July 2025
#1
8% Off
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  • 3/10 HP residential sump or septic pump
  • 1½" discharge capable of handling 1/2" solids
  • Automatic operation with float switch
  • Durable cast iron pump housing and switch case with plastic base
  • Performance: 43 GPM at 19.25' TDH, fully factory tested
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  • 3/10 HP residential sump or septic pump
  • 1½" discharge capable of handling 1/2" solids
  • Automatic operation with float switch
  • Durable cast iron pump housing and switch case with plastic base
  • Performance: 43 GPM at 19.25' TDH, fully factory tested
#2
Value for Money
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  • Material: Cast iron
  • Submersible design
  • Power: 3/10 HP
  • Discharge size: 1-1/2" NPT
  • Maximum discharge flow rate: 43 GPM
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  • Material: Cast iron
  • Submersible design
  • Power: 3/10 HP
  • Discharge size: 1-1/2" NPT
  • Maximum discharge flow rate: 43 GPM
#3
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  • Automatic operation with a float-activated switch
  • Vortex impeller design prevents clogging
  • Robust cast iron construction for switch case, motor, and pump housing
  • Plastic base enhances durability
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  • Automatic operation with a float-activated switch
  • Vortex impeller design prevents clogging
  • Robust cast iron construction for switch case, motor, and pump housing
  • Plastic base enhances durability
#4
30% Off
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  • Durable construction with an epoxy-coated cast iron cover and mechanical shaft seal for long-lasting performance.
  • Energy-efficient 115-volt, 5 Amp motor designed for continuous duty with a standard 10-foot power cord.
  • Automatic operation with a float switch that activates the pump at 8-11 inches of water and deactivates it at 2-5 inches.
  • Capable of handling semi-solids up to 1/2-inch, suitable for light effluent waste management.
  • Specifications include 1/3 HP, 115-Volts, 5 Amps, and a maximum flow rate of 53 GPM at a 5-foot lift.
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  • Durable construction with an epoxy-coated cast iron cover and mechanical shaft seal for long-lasting performance.
  • Energy-efficient 115-volt, 5 Amp motor designed for continuous duty with a standard 10-foot power cord.
  • Automatic operation with a float switch that activates the pump at 8-11 inches of water and deactivates it at 2-5 inches.
  • Capable of handling semi-solids up to 1/2-inch, suitable for light effluent waste management.
  • Specifications include 1/3 HP, 115-Volts, 5 Amps, and a maximum flow rate of 53 GPM at a 5-foot lift.
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#5
15% Off
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  • 1/3 HP WAYNE basement sump pump designed for indoor use to efficiently manage water flow during heavy rain or snow melt, capable of pumping up to 4,600 GPH.
  • Constructed with a corrosion-resistant epoxy coated steel motor housing and stainless steel fasteners, combined with a durable cast-iron volute for enhanced longevity in demanding applications.
  • Top suction design prevents air lock and reduces debris clogging, with an installation time of approximately 15 minutes and no need for a weep hole.
  • Features a compliant 1-1/2” NPT discharge and a highly tested vertical float switch rated for 1 million cycles, ensuring durability and reliability.
  • Assembled in the USA with a 3-year warranty, providing dependable and quiet operation for peace of mind.
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  • 1/3 HP WAYNE basement sump pump designed for indoor use to efficiently manage water flow during heavy rain or snow melt, capable of pumping up to 4,600 GPH.
  • Constructed with a corrosion-resistant epoxy coated steel motor housing and stainless steel fasteners, combined with a durable cast-iron volute for enhanced longevity in demanding applications.
  • Top suction design prevents air lock and reduces debris clogging, with an installation time of approximately 15 minutes and no need for a weep hole.
  • Features a compliant 1-1/2” NPT discharge and a highly tested vertical float switch rated for 1 million cycles, ensuring durability and reliability.
  • Assembled in the USA with a 3-year warranty, providing dependable and quiet operation for peace of mind.
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#6
6% Off
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  • 1/3 HP sump pump designed for efficient water removal
  • Pumps up to 2520 gallons per hour
  • Ideal for basement and crawl space drainage
  • Durable construction ensures longevity
  • Automatic on/off operation for convenience
  • Thermal overload protection for added safety
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  • 1/3 HP sump pump designed for efficient water removal
  • Pumps up to 2520 gallons per hour
  • Ideal for basement and crawl space drainage
  • Durable construction ensures longevity
  • Automatic on/off operation for convenience
  • Thermal overload protection for added safety
#7
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  • Vertical switch designed for 10-inch diameter sump basins.
  • Vortex impeller effectively removes lint and debris without clogging.
  • 1-1/2-inch NPT discharge capable of handling 3/8-inch solids.
  • High-efficiency motor with 48 GPM capability, overload protection, and oil-filled operation.
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  • Vertical switch designed for 10-inch diameter sump basins.
  • Vortex impeller effectively removes lint and debris without clogging.
  • 1-1/2-inch NPT discharge capable of handling 3/8-inch solids.
  • High-efficiency motor with 48 GPM capability, overload protection, and oil-filled operation.
#8
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  • One-piece UniBody construction for enhanced durability
  • Easy-to-use quick-connect power cord
  • Upper and lower bearings are permanently lubricated for smooth operation
  • Oil-filled, hermetically sealed motors feature thermal overload protection for safety
  • Removable stainless steel bottom screen for easy cleaning
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  • One-piece UniBody construction for enhanced durability
  • Easy-to-use quick-connect power cord
  • Upper and lower bearings are permanently lubricated for smooth operation
  • Oil-filled, hermetically sealed motors feature thermal overload protection for safety
  • Removable stainless steel bottom screen for easy cleaning
#9
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  • Vortex style impeller ensures efficient solid passage
  • Constructed from durable polypropylene and powder-coated aluminum
  • Features a stainless steel rotor shaft for enhanced durability
  • Equipped with stainless steel fasteners for corrosion resistance
  • Oil-filled, hermetically sealed motors with built-in thermal overload protection
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  • Vortex style impeller ensures efficient solid passage
  • Constructed from durable polypropylene and powder-coated aluminum
  • Features a stainless steel rotor shaft for enhanced durability
  • Equipped with stainless steel fasteners for corrosion resistance
  • Oil-filled, hermetically sealed motors with built-in thermal overload protection
#10
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  • Heavy-duty indoor pump with durable epoxy-coated steel and thermoplastic materials for long-lasting performance.
  • Automatic operation with integrated vertical float switch featuring a 9" ON level and 4" OFF level, designed to minimize clogging and prevent air lock.
  • Cast iron seal plate prevents leaks and corrosion, while upper and lower ball bearings in a sealed oil bath ensure quiet operation.
  • 1-1/2" NPT discharge compliant with building codes and 8 ft water-resistant power cord for convenient accessibility.
  • Assembled in the USA with a 1-year warranty for reliable and efficient performance.
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  • Heavy-duty indoor pump with durable epoxy-coated steel and thermoplastic materials for long-lasting performance.
  • Automatic operation with integrated vertical float switch featuring a 9" ON level and 4" OFF level, designed to minimize clogging and prevent air lock.
  • Cast iron seal plate prevents leaks and corrosion, while upper and lower ball bearings in a sealed oil bath ensure quiet operation.
  • 1-1/2" NPT discharge compliant with building codes and 8 ft water-resistant power cord for convenient accessibility.
  • Assembled in the USA with a 1-year warranty for reliable and efficient performance.
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