Sump Pump Thermoplastic Review by Comparison

For Submersibles at Pumps Selection


Review by Comparison

Construction for submersible pumps is important because

  • The pump housing for each pump is made to slow down the corrosion process.
  • Thermoplastic will not corrode; however, the sump pump is not built to last as long because internal parts are generally thermoplastic as well.
  • Zoeller Mighty Mate M57 and the Flow Mate series (M98, M137) are the most durable of all the submersible sump pumps.  Their housing, impeller and volute made of solid cast iron.  Mighty Mate M59 is durable as well with housing, volute and impeller made from bronze.  Flow Mate 139 is highly durable with housing of bronze and volute and impeller made of cast iron. 
  • StormPro (BA-33M, BA-33V, BA-75M, BA-75V) are durable as well since the base, volute and impeller are made of cast iron. The pump housing is made of stainless steel. 
  • Watchdog Green Line pumps are not as durable as Zoeller, however, they do have cast iron housing, metal volute and balanced cast iron impeller
  • Simer Ace-in-the-Hole has stainless steel housing, cast iron volute and impeller made from glass-filled polypropolyene.
  • Ridgid sump pumps have stainless steel housing and impeller made from cast iron.
  • Sump Pumps manufactured by Wayne, Little Giant and Flotec that have cast iron or stainless steel housing, may have a volute of cast iron, but the impeller is made of glass-filled polypropolyene, nylon or some form of thermoplastic.   

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Select Other Sump Pump Construction Materials

Cast Iron Housing, other material may be used for Volute and/or Impeller 

Cast Iron Housing, Volute and Impeller

Cast Iron Volute and Impeller and Stainless Steel Housing

Zinc Alloy Housing, other material used for Volute and Impeller 

Stainless Steel Housing, other material used for Volute and/or  Impeller 

Cast Bronze Housing, other material many be used for Volute and/or Impeller

Cast Bronze Housing, Volute and Impeller (or Cast Iron Impeller)




Thermoplastic (or similar material) Housing, Volute and Impeller -Submersible Sump Pump



Little Giant SP25T Submersible Sump Pump 

1/4 HP Plastic Tether Float 1380 GPH @ 10 ft. 2 yr. Warranty 1 1/4 in. Discharge


Little Giant SP25T 1/4 HP Plastic Sump Pump with Tethered Switch

Little Giant SP50V Submersible Sump Pump


1/2 HP Cast Iron Vertical Float Switch 3360 GPH @ 10 ft. 5 yr. Warranty 1 1/2 in. Discharge


Little Giant SP50V Sump Pump with Vertical Float Switch, Thermoplastic, 1/2-HP 3500-GPH
Little Giant SP50T 1/2 HP 2640 GPH

1/2 HP Thermoplastic Tethered  Float Switch 3360 GPH @ 10 ft. 5 yr. Warranty 1 1/2 in. Discharge

Little Giant SP50T 1/2 HP Plastic Sump Pump with Tethered Switch
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Zoeller 72 Aqua Mate Submersible Sump Pump

1-3 HP Engineered Plastic Vertical Float 1800 GPH at 10 ft. 1 yr. warranty 1 1-2 in. Discharge


Zoeller 72-0001 115 Volt .3 HP 3.1 Amps Thermoplastic Automatic Sump Pump w/9 Ft. Cord
Zoeller M76 Aqua Mate 1/2 HP Submersible Sump Pump

Aqua Mate 1-2 HP Non Corrosive Engineered Plastic Vertical Float 4740 GPH at 10 ft. 1 yr. Warranty 1 1-2 in Discharge



Zoeller 76-0001 M76 Thermoplastic Automatic Dewatering Pump w/9 Ft. Cord

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Wayne SPF33 1/3 HP Submersible Sump Pump

Thermoplastic Vertical Float 2500 GPH @ 10 ft. 1 yr. Warranty 1 1/2 in. Discharge


Wayne Home Equipment SPF33-57610 Submersible Sump Pump

Wayne Blue Angel Pro Series BSPT33 Submersible Sump Pump

Thermoplastic Tether Float Switch 2520 GPH @ 10 ft. 1 yr. Warranty 1 1/2 in Discharge


Wayne Blue Angel Submersible Sump Pump Pro Series BSPT33 1/3 HP

Wayne RSP130 1/3 HP Submersible Sump Pump

Thermoplastic Tether Float 2460 GPH @ 10 ft 1 yr Warranty 1 1/2 in Discharge

Wayne Submersible Sump Pump - 2700 GPH, 1/3 HP, 1 1/2in., Model# RSP130

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Wayne BSPF33 Blue Angel Pro Series Sump Pump 1/3 HP 2520 GPH

1/3 HP Reinforced Thermoplastic Vertical Float Switch 2520 GPH @ 10 ft. 1 yr. Warranty 1 1/2 in Discharge


Wayne Blue Angel Pro Series BSPF33 Submersible Sump Pump
Wayne Submersible Sump Pump Pro Series BWSF25

1/4 HP Thermoplastic Vertical Float Switch 1320 GPH @ 10 ft 1 yr Warranty 1 1/2 in Discharge


Wayne Blue Angel Pumps Pro Series BWSF25

Wayne BSPF50 Submersible Sump Pump

Blue Angel Pumps Pro Series BSPF50 Submersible Sump Pump 1/2 HP Thermoplastic Vertical Float 2820 GPH @ 10 ft 1 yr Warranty 1 1/2 in. Discharge

Wayne BSPF40 Blue Angel Sump Pump
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Wayne Blue Angel Pro Series BSPT50  Sump Pump

1/2 HP Thermoplastic Tether Float Switch 2820 GPH @ 10 ft. 1 yr. Warrarnty 1 1/2 in. Discharge



Wayne Blue Angel Pro Series BSPT50 Submersible Sump Pump Wayne Pro Series Sump Pump ½ HP Thermoplastic

Wayne BWSF30 Submersible Vertical Float 1/3 HP 1300 GPH

1/3 HP Glass Reinforced Thermoplastic Vertical Float Switch 1300 GPH @ 10 ft. 1 yr Warranty 1 1/2 in Discharge



Wayne Blue Angel Pro Series BWSF30 Submersible Sump Pump

Wayne ASF50-N Submersible Sump Pump

1/2 HP Thermoplastic Vertical FLoat Switch 2270 GPH @ 10 Ft. 2 yr Warranty 1 1/2 in Discharge

Wayne Submersible Sump Pump ASP-50-N 1/2 HP [Misc.]

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Wayne WST40 57640 Submersible Sump Pump

4/10 HP Thermoplastic Tether Float 1900 GPH @ 10 ft. 1 yr Warranty 1 1/2 in. Discharge


4/10 HP Tether Float Switch Thermoplastic Sump Pump

Wayne BWST30 Submersible Sump Pump   Blue Angel Series

3/10 HP Thermoplastic Tether Float 1380 GPH @ 10 ft. 1 yr. Warranty 1 1/2 in Discharge


Wayne Blue Angel Series BWST30 Submersible Sump Pump

Wayne WST30 Submersible Sump Pump

1/3 HP Thermoplastic Tether Float 1400 GPH @ 10 ft 1 yr. Warranty 1 1/2 in Discharge

Wayne WST30 Submersible Sump Pump
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Wayne ASF33 Submersible Sump Pump 1/3 HP 2270 GPH

1/3 HP Thermoplastic Vertical Float 2270 GPH @ 10 ft 2 yr Warranty 1 1/2 in Discharge


Wayne Submersible Sump Pump ASF33 Wayne Submersible Sump Pump 1/3 HP ASF33

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