For a conventional basement sump pit, the WAYNE CDU980E pairs a vertical float switch with a stated capacity of 5,490 GPH, cast iron and stainless steel construction, and a 5-year warranty. Choose based on your pit, discharge setup, and water-removal needs, not horsepower alone. The Acquaer models are sewage ejector pumps, so they are not direct substitutes for standard groundwater sump pumps.
The published listings range widely in price, all below $200. Prices can change.
Quick comparison
| Model | Stated capacity or lift | Construction and useful detail | Warranty |
|---|---|---|---|
| WAYNE CDU980E | 5,490 GPH | 3/4 HP; cast iron and stainless steel; top-suction design | 5 years |
| WAYNE CDU800 | 5,100 GPH | 1/2 HP; cast iron and corrosion-resistant steel; top-suction design | 3 years |
| Liberty Pumps 237 | 3/8-inch solids | 1/3 HP; vortex-style impeller; 1-1/2-inch discharge | Not listed |
| Superior Pump 92031 | 2,760 GPH; lifts up to 25 feet | 1/3 HP; cast iron; check valve included | Not listed |
| Superior Pump 92057 | 3,300 GPH; lifts up to 25 feet | 1/2 HP; thermoplastic; check valve included | Not listed |
| PROFLO PF92341 | Not listed | 3/10 HP; cast iron | Not listed |
| PROFLO PF92342 | Not listed | 1/3 HP; thermoplastic | Not listed |
| Acquaer 1/2 HP sewage pump | 6,000 GPH; lifts 27 feet | 2-inch solids; 2-inch NPT discharge; sewage ejector | 2-year support period |
| Acquaer 3/4 HP sewage pump | 6,400 GPH; lifts 29 feet | 2-inch solids; 2-inch NPT discharge; sewage ejector | 2-year support period |
Capacity figures are manufacturer-listed maximums, not a guarantee of flow in a particular installation. Discharge height and plumbing affect actual performance. Compare pump curves and installation limits in the exact model documentation before buying; those details are not listed for every model here.
How to choose
- Confirm pump type. Standard sump pumps handle groundwater collected in a sump basin. The two Acquaer listings are sewage ejector pumps intended for sewage and drainage applications. They are explicitly not for septic tanks. Do not use them as a substitute for a standard sump pump without confirming the application and plumbing requirements.
- Check pit clearance. Vertical float switches suit some narrow pits, but the pump still needs room for the float to move without hitting the pit wall, piping, or debris. Compare the pump dimensions and required operating water levels with your basin.
- Match discharge plumbing. The Superior kits and Liberty 237 specify 1-1/2-inch discharge connections. Acquaer sewage pumps specify 2-inch NPT discharge. Check existing pipe size, fittings, and local requirements before purchase.
- Compare capacity at your lift height. GPH maximums alone do not show how much water a pump moves at your system’s discharge height. Look up the exact model’s performance curve and compare it with your required lift.
- Weigh included parts and construction. Superior Pump 92031 and 92057 include a rubber boot check valve. The WAYNE listings describe cast iron and steel construction; the Superior 92057 and PROFLO PF92342 use thermoplastic.
- Check warranty and protection details. Published information gives WAYNE CDU980E a 5-year warranty and CDU800 a 3-year warranty. Acquaer describes a 2-year support period, which is not necessarily a warranty. Warranty details for other listed models were not listed.
Product notes
WAYNE CDU980E 3/4 HP Submersible Sump Pump
The strongest fit among these listings for buyers prioritizing stated capacity and warranty on a standard sump pump. It lists 5,490 GPH, a vertical float, top-suction anti-airlock design, and a 5-year warranty.
Pros: Highest stated capacity among the standard sump pumps with a listed GPH figure; cast iron and stainless steel construction; top-suction design; 5-year warranty.
Cons: The published information does not include a performance curve or dimensions. Its 3/4 HP motor may be more capacity than some basins need.
Who should skip it: Buyers who need confirmed fit in a particularly narrow basin or verified flow at a specific discharge height should check model documentation first.
WAYNE CDU800 1/2 HP Submersible Sump Pump
This standard sump pump lists 5,100 GPH, a vertical float switch, top-suction design, and a 3-year warranty. It offers lower stated capacity than the CDU980E while retaining a metal construction description.
Pros: Stated 5,100 GPH capacity; cast iron and corrosion-resistant steel; float switch described as tested to 1 million cycles; 3-year warranty.
Cons: The warranty is shorter than the CDU980E’s. No dimensions or performance curve were listed.
Who should skip it: Buyers seeking the longest listed warranty or needing verified performance at a specific lift height.
Liberty Pumps 237 1/3 HP Submersible Sump Pump
A standard residential sump pump with a vertical magnetic float, vortex-style impeller, and 1-1/2-inch discharge. It handles solids up to 3/8 inch, according to the published product details.
Pros: Vortex-style impeller; thermal motor protection; stated solids handling; standard 1-1/2-inch discharge.
Cons: No GPH capacity, warranty, dimensions, or performance curve supplied.
Who should skip it: Buyers who need a documented flow rate or warranty comparison before choosing.
Superior Pump 92031 Cast Iron Submersible Sump
This 1/3 HP standard sump pump lists 2,760 GPH and lift up to 25 feet. The kit includes a 1-1/2-inch rubber boot check valve.
Pros: Cast iron body; vertical float; stated capacity and lift; check valve included.
Cons: Lower stated GPH than the Wayne options. The 25-foot lift figure does not show flow at that height.
Who should skip it: Buyers who need high documented flow at their actual discharge height or want a listed warranty term.
Superior Pump 92057 1/2 HP Thermoplastic
This standard sump pump lists 3,300 GPH and lift up to 25 feet. It includes a rubber boot check valve and uses a thermoplastic body.
Pros: Higher stated capacity than the 92031; vertical float; check valve included; 10-foot cord.
Cons: Thermoplastic construction rather than cast iron. No warranty details or flow-at-height data listed.
Who should skip it: Buyers who prefer a cast iron body or need a verified performance curve.
PROFLO PF92341 and PF92342
Both PROFLO listings specify a vertical float and 11-3/4-inch height. PF92341 uses cast iron and measures 7-5/8 inches wide by 5-1/4 inches deep. PF92342 uses thermoplastic and measures 8-1/2 inches wide by 7-1/2 inches deep. Neither listing supplies GPH capacity, lift, or warranty details.
Pros: Defined dimensions support a basic fit check; choice of cast iron or thermoplastic construction.
Cons: Capacity, lift, and warranty information were not listed. The PF92342 is wider and deeper than the PF92341.
Who should skip them: Buyers who cannot confirm suitable capacity and lift from the exact model documentation.
Acquaer 1/2 HP and 3/4 HP sewage pumps
These are sewage ejector pumps, not standard groundwater sump pumps. The 1/2 HP model lists 6,000 GPH and 27 feet of lift; the 3/4 HP model lists 6,400 GPH and 29 feet. Both specify a vertical float, 2-inch NPT discharge, handling of solids up to 2 inches, and a 2-year support period. The published description says they are not for septic tanks.
Pros: Stated capacity and lift; automatic and manual control; cast iron construction; thermal overload protection; 10-foot UL-listed power cord.
Cons: Sewage-specific use and 2-inch discharge may not match a standard sump setup. The product information warns to ensure full submersion before starting and protect the pump from freezing.
Who should skip them: Buyers replacing a conventional basement sump pump, or anyone seeking a septic tank pump.
Before you buy
- Measure basin clearance and verify float movement at the listed switch levels, where available.
- Match the discharge size and connection type to existing plumbing.
- Use the model performance curve to check flow at your required vertical lift.
- Confirm pump type for groundwater versus sewage applications.
- Review exact-model installation, electrical, warranty, and maintenance instructions. Keep the plug and connections dry, and use a suitable protected outlet. If electrical changes are needed, use a qualified electrician.
Choose the WAYNE CDU980E if its dimensions and performance curve fit your basin and you value its stated capacity and 5-year warranty. Consider the CDU800 for a lower stated capacity with a 3-year warranty, or compare Liberty and Superior models when their connection, construction, and documented performance suit your setup. Choose either Acquaer only for a compatible sewage-ejector application. Verify exact-model documentation before purchase.
Pros
- Automatic operation suits homeowners who want the pump to respond to changing water levels.
- Vortex-style impeller and 3/8-inch solids handling address common clogging concerns.
Cons
- The 1-1/2-inch discharge and listed standard-basin fit may not match every existing sump setup.
- The published information does not specify pumping capacity or lift, so buyers must confirm it meets site drainage demands.
Specifications
| Color | No Finish |
|---|---|
| Size | unt |
| Dimensions | 11 x 9.2 x 13.5 inches |
| Weight | 11 pounds |
| Product Group | Home Improvement |
| Binding | Tools & Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Automatic operation suits homeowners who want the pump to respond to changing water levels.
- Vortex-style impeller and 3/8-inch solids handling address common clogging concerns.
- Listed 11-pound weight and compact 11 x 9.2 x 13.5-inch dimensions provide clear planning details.
Consider another option if
- The 1-1/2-inch discharge and listed standard-basin fit may not match every existing sump setup.
- The published information does not specify pumping capacity or lift, so buyers must confirm it meets site drainage demands.
Pros
- High listed pumping capacity for basement water management.
- Float switch tested to 1 million cycles.
Cons
- Sump-pit dimensions and discharge connection must match the pump's 9 x 9 x 12-inch body and 1-1/2-inch NPT outlet.
- Provided details do not state pumping capacity at specific lift heights, which limits performance comparison for a particular installation.
Specifications
| Color | Black |
|---|---|
| Size | 0.5 HP |
| Dimensions | 9 x 9 x 12 inches |
| Weight | 12 Pounds |
| Product Group | Home Improvement |
| Binding | Tools & Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- High listed pumping capacity for basement water management.
- Float switch tested to 1 million cycles.
- Top suction design addresses clogging and air-lock concerns.
Consider another option if
- Sump-pit dimensions and discharge connection must match the pump's 9 x 9 x 12-inch body and 1-1/2-inch NPT outlet.
- Provided details do not state pumping capacity at specific lift heights, which limits performance comparison for a particular installation.
Pros
- Automatic on/off operation reduces the need to switch the pump manually.
- Pump and check valve components come together in one kit.
Cons
- The 1-1/2-inch NPT discharge requires a matching plumbing connection.
- The listed maximum flow and maximum lift do not establish performance at every installation height.
Best For / Avoid If
Best for buyers prioritizing
- Automatic on/off operation reduces the need to switch the pump manually.
- Pump and check valve components come together in one kit.
- Factory testing is stated by the manufacturer.
Consider another option if
- The 1-1/2-inch NPT discharge requires a matching plumbing connection.
- The listed maximum flow and maximum lift do not establish performance at every installation height.
Pros
- High listed flow capacity for substantial water removal needs.
- Vertical float switch is suited to narrow sump pits.
Cons
- Provided specifications do not state pumping head, so buyers cannot compare lift performance from the listed flow rate alone.
- Its 8 x 8 x 12-inch dimensions require checking available sump-pit clearance.
Best For / Avoid If
Best for buyers prioritizing
- High listed flow capacity for substantial water removal needs.
- Vertical float switch is suited to narrow sump pits.
- Cast iron and stainless steel construction, with a stated five-year warranty.
Consider another option if
- Provided specifications do not state pumping head, so buyers cannot compare lift performance from the listed flow rate alone.
- Its 8 x 8 x 12-inch dimensions require checking available sump-pit clearance.
Pros
- Cast-iron construction is a substantial, durability-focused material choice.
- Vertical float switch is included in the listed product configuration.
Cons
- The provided information does not state pumping capacity or maximum lift, limiting performance comparisons.
- At 20.5 pounds, handling may be less convenient than with a lighter pump.
Best For / Avoid If
Best for buyers prioritizing
- Cast-iron construction is a substantial, durability-focused material choice.
- Vertical float switch is included in the listed product configuration.
- Product data provides power rating, size, dimensions, and weight for comparison.
Consider another option if
- The provided information does not state pumping capacity or maximum lift, limiting performance comparisons.
- At 20.5 pounds, handling may be less convenient than with a lighter pump.
- Installation requirements and included accessories are not specified.
Pros
- Includes a check valve kit with 1-1/2-inch rubber boots and weighted flapper valve.
- Vertical float switch automates pump cycling.
Cons
- The 1-1/2-inch NPT discharge and included boot sizes may require checking against existing plumbing.
- The 25-foot lift limit may not suit installations requiring greater vertical lift.
Specifications
| Color | Black |
|---|---|
| Size | 1/3 HP KIT |
| Dimensions | 9 x 6.5 x 11.375 Inches |
| Weight | 20 Pounds |
| Product Group | Home Improvement |
| Binding | Tools & Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Includes a check valve kit with 1-1/2-inch rubber boots and weighted flapper valve.
- Vertical float switch automates pump cycling.
- Product information lists a maximum lift of 25 feet.
Consider another option if
- The 1-1/2-inch NPT discharge and included boot sizes may require checking against existing plumbing.
- The 25-foot lift limit may not suit installations requiring greater vertical lift.
Pros
- Rust- and corrosion-resistant finish is specified for everyday use.
- Vertical float switch is included as part of the pump design.
Cons
- Flow rate and pumping capacity are not listed, limiting performance comparisons.
- Dimensions are given in two different sets, so confirm required fit before purchase.
Best For / Avoid If
Best for buyers prioritizing
- Rust- and corrosion-resistant finish is specified for everyday use.
- Vertical float switch is included as part of the pump design.
- Listed weight is 10.5 pounds, with dimensions provided for fit checks.
Consider another option if
- Flow rate and pumping capacity are not listed, limiting performance comparisons.
- Dimensions are given in two different sets, so confirm required fit before purchase.
Pros
- Listed capacity reaches up to 6000 GPH with a 27-foot lift.
- Automatic float switch manages water-level cycling without constant user attention.
Cons
- Not suitable for septic tanks, and the pump must be fully submerged before starting.
- The 2-inch NPT discharge connection may not match existing plumbing without suitable fittings.
Specifications
| Color | Deep Black |
|---|---|
| Size | 2'' NPT 1/2 HP 6000 GPH Vert. Float |
| Dimensions | 7.87 x 14.96 x 18.9 inches |
| Product Group | Home Improvement |
| Binding | Tools & Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- Listed capacity reaches up to 6000 GPH with a 27-foot lift.
- Automatic float switch manages water-level cycling without constant user attention.
- Vortex impeller and 2-inch solids handling support debris-prone sewage applications.
Consider another option if
- Not suitable for septic tanks, and the pump must be fully submerged before starting.
- The 2-inch NPT discharge connection may not match existing plumbing without suitable fittings.
- The product information advises protecting the pump from freezing.
Pros
- High listed flow rate and 29 ft lift suit substantial drainage demands.
- Handles solids up to 2 inches through its 2-inch NPT discharge.
Cons
- Not suitable for septic tanks, and the pump must be fully submerged during operation.
- Requires protection from freezing, which may limit use in exposed conditions.
Specifications
| Color | Dark Black |
|---|---|
| Size | 2'' NPT 3/4 HP 6400 GPH Vert. Float |
| Dimensions | 7.87 x 14.96 x 18.9 inches |
| Product Group | Home Improvement |
| Binding | Tools & Home Improvement |
Verify the current product variation before purchase; specifications may change.
Best For / Avoid If
Best for buyers prioritizing
- High listed flow rate and 29 ft lift suit substantial drainage demands.
- Handles solids up to 2 inches through its 2-inch NPT discharge.
- Automatic float switch includes defined start and stop levels.
Consider another option if
- Not suitable for septic tanks, and the pump must be fully submerged during operation.
- Requires protection from freezing, which may limit use in exposed conditions.
- The listed dimensions, 7.87 x 14.96 x 18.9 inches, may be a fit concern for smaller pits.
