The best sump pumps for the money
Value in this category is not the lowest sticker. It is the most published gallons at real lift, in a housing that handles heat, from a brand that sells parts.
We earn a commission if you buy through our Amazon links, at no cost to you. We do not bench-test these products and we never take free product — how we pick · affiliate disclosure
The best sump pump for the money is the Wayne CDU790: it publishes 3,060 gallons per hour at ten feet of lift, in epoxy-coated cast iron, at a price that mostly buys thermoplastic. It is the right buy for a homeowner replacing a pump in an average basement with eight to ten feet of lift, who wants the number before handing over the money.
Everything below is ranked by published flow at real lift per dollar, not by horsepower. Horsepower is an input; gallons at your lift is the output, and the two correlate far more loosely than the boxes suggest. We publish no prices anywhere on this site, because a number typed in October is wrong by November — every button goes to the live listing.
Quick picks
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 |  Wayne CDU790A third of a horsepower in epoxy-coated cast iron that still moves 3,060 gallons an hour at ten feet of lift. | The most published flow per dollar | 8.9 | Check price on Amazon #ad we earn a commission · Amazon shows the current price |
| 2 |  Superior Pump 92341Real cast iron, a continuous-duty motor and a three-year warranty at close to thermoplastic money. | The cheapest honest cast iron | 7.9 | Check price on Amazon #ad we earn a commission · Amazon shows the current price |
| 3 |  Zoeller M53 Mighty-MateCosts more than either pick above and is still the cheapest pump on this page over fifteen years. | Buying once | 8.8 | Check price on Amazon #ad we earn a commission · Amazon shows the current price |
| 4 |  Superior Pump 92330Thermoplastic, tethered float, the lowest honest price — defensible only in an unfinished basement with light duty. | The absolute floor | 6.8 | Check price on Amazon #ad we earn a commission · Amazon shows the current price |
Scores are ours and editorial, not lab measurements — see how we pick. Tap a row for the full write-up.
What we compared, and what we refused to compare
| Wayne CDU790 | Superior 92341 | Zoeller M53 | Superior 92330 | |
|---|---|---|---|---|
| Housing | Epoxy-coated cast iron | Cast iron | Cast iron | Thermoplastic |
| Horsepower | 1/3 HP | 1/3 HP | 3/10 HP (sold as 1/3) | 1/3 HP |
| Flow at 0 ft | 4,600 GPH | 2,760 GPH | 2,580 GPH | 2,400 GPH |
| Flow at 10 ft | 3,060 GPH | Not published | 2,040 GPH | Not published |
| Current draw | 9.5 A | 4.1 A | 9.7 A | Not published |
| Switch | Vertical float | Vertical float | Integral vertical float | Tethered float |
| Warranty | Three years | Three years | Three years | Not published |
Two of the four do not publish a flow curve. That is the most common gap in this category, and it is why a value ranking built purely on gallons per dollar would be dishonest: it would quietly compare a measured number against a marketing number. Where the curve is missing we say so, and we rank the pump lower for it.
Wayne CDU790
A third of a horsepower in epoxy-coated cast iron that still moves 3,060 gallons an hour at ten feet of lift.
#ad we earn a commission · Amazon shows the current price
| Type | Submersible, epoxy-coated cast iron |
|---|---|
| Horsepower | 1/3 HP |
| Electrical | 120 V, 9.5 A, PSC oil-filled motor |
| Discharge | 1-1/2" NPT |
| Cord | 8 ft |
| Switch | Vertical float |
| Flow, by lift | 4,600 GPH at 0 ft · 3,060 GPH at 10 ft |
| Warranty | Three years (the CDU790SS stainless variant is five) |
The honest way to compare pumps on price is gallons per hour at the lift your house actually asks for, divided by what you pay. Almost nobody publishes it that way, because the zero-lift headline number is bigger and sells better. The CDU790 wins the comparison when you do it properly: 4,600 GPH at zero lift, and still 3,060 GPH at ten feet.
That matters because a basement pump typically lifts eight to ten feet before the discharge turns horizontal. A pump quoting 3,000 GPH at zero lift may be delivering well under half of that by the time the water reaches your yard. This one starts higher and falls less.
The rest is unremarkable in the good way. Epoxy-coated cast iron, an oil-filled PSC motor, a vertical float and a three-year warranty. Nothing here is a differentiator you will brag about, and nothing here is the reason it fails.
What it gets right
- 3,060 GPH at 10 ft of lift, published, which beats pumps sold as more powerful
- Epoxy-coated cast iron handles heat the way a plastic housing cannot
- Vertical float suits a narrow basin
Where it falls short
- Switch is competent rather than exceptional
- Eight-foot cord often means moving the circuit, not the pump
Specifications from Wayne CDU790 specification listing, Wayne CDU790 distributor listing.
Superior Pump 92341
Real cast iron, a continuous-duty motor and a three-year warranty at close to thermoplastic money.
#ad we earn a commission · Amazon shows the current price
| Type | Submersible, cast iron |
|---|---|
| Horsepower | 1/3 HP |
| Electrical | 120 V, 4.1 A |
| Discharge | 1-1/2" |
| Switch | Vertical float |
| Motor | Continuous duty, thermally protected split capacitor |
| Flow, by lift | 2,760 GPH at 0 ft |
| Warranty | Three years |
Superior Pump's position in this market is simple: it sells the materials the premium brands use at a price closer to the budget brands, and it spends nothing on documentation. The 92341 is cast iron with a continuous-duty motor, and the published flow is 2,760 GPH at zero lift.
We rank it second rather than first for one reason only: there is no published curve, so we cannot tell you what it does at ten feet, and we are not going to estimate it. If you want the number before you buy, buy the Wayne.
Where it is hard to beat is as the second pump in a two-pit house, or as a planned replacement for a pump that is already fifteen years old. At this price redundancy is affordable, and redundancy fixes failure modes that capacity never will.
What it gets right
- Cast-iron housing at a price that usually buys plastic
- Continuous-duty thermally protected motor
- Draws only 4.1 A, which is easy on a shared circuit
Where it falls short
- Only a zero-lift flow figure is published
- Smaller spares network than the big three
Specifications from Superior Pump 92341 specification listing.
Zoeller M53 Mighty-Mate
Costs more than either pick above and is still the cheapest pump on this page over fifteen years.
#ad we earn a commission · Amazon shows the current price
| Type | Submersible, cast iron |
|---|---|
| Horsepower | 3/10 HP (sold as 1/3 HP) |
| Electrical | 115 V, 9.7 A, 60 Hz |
| Discharge | 1-1/2" NPT vertical female |
| Switch | Integral vertical float, on at 7-1/4", off at 3" |
| Solids handling | 1/2" |
| Shut-off head | 19.25 ft |
| Flow, by lift | 2,580 GPH at 0 ft · 2,040 GPH at 10 ft |
| Warranty | Three years |
The M53 is the pump the trade buys when nobody is watching, and it is on this page because value and cheapness are not the same thing. Spread across a fifteen-year service life, the premium over the Superior is small, and the chance of needing a second purchase inside that window is lower.
It also publishes everything: 2,580 GPH at zero lift, 2,040 at ten feet, a 19.25 ft shut-off head, the switch's on and off points, the amp draw. That transparency is itself a value argument, because it is the only way to know whether the pump matches your lift before it is in the pit.
What it gets right
- Full cast iron, with 2,040 GPH at 10 ft published
- Switch design with a service record measured in decades
- Parts and seals available from any plumbing supply house
Where it falls short
- Costs meaningfully more than the Superior
- The float wants swing room in the basin
Specifications from Zoeller M53 (53-0001) specification sheet.
Superior Pump 92330
Thermoplastic, tethered float, the lowest honest price — defensible only in an unfinished basement with light duty.
#ad we earn a commission · Amazon shows the current price
| Type | Submersible, thermoplastic |
|---|---|
| Horsepower | 1/3 HP |
| Switch | Tethered float |
| Flow, by lift | 2,400 GPH at 0 ft |
This is here to mark the floor honestly rather than to be recommended enthusiastically. A thermoplastic housing does not conduct motor heat into the pit water, so the duty cycle it tolerates is lower. In a pit that cycles every two minutes through a thaw, that is the pump that stops.
In an unfinished basement where the pit runs twice a day and the floor is a slab you can hose off, it is a rational purchase, and the money saved is better spent on a water alarm.
What it gets right
- Lowest price of anything we would put in a pit
- Light enough to lift out single-handed
- A tethered float gives long, gentle cycles in a wide basin
Where it falls short
- Thermoplastic housing retains motor heat
- No published flow beyond the zero-lift figure
Specifications from Superior Pump brand listing.
Where the money is actually wasted
Three habits cost homeowners more than the choice of pump, and all three are avoidable.
- Buying horsepower instead of lift. A 3/4 HP pump in a pit that needs 1/3 HP short-cycles, and motor starts are what wear a pump out. Work out what size sump pump you need before you shop.
- Skipping the check valve. Without one, the water standing in the vertical pipe falls back into the pit the moment the pump stops, and the pump immediately runs again. A check valve costs a fraction of a pump and removes a whole class of wasted cycles.
- Spending the backup budget on the primary. A larger primary pump does nothing in a power cut, which is when most basements flood. A modest primary plus a battery backup beats an expensive primary alone, every time.
Choosing in one minute
- Measure the lift from the pit floor to the highest point of the discharge pipe. Eight to ten feet is typical.
- Pick on flow at that lift, not on horsepower. If the maker publishes no figure at your lift, treat that as a mark against the pump.
- Buy iron if the pit works hard. Frequent or long runs mean the housing has to shed motor heat, and cast iron versus plastic stops being a style question.
- Spend what is left on a backup and an alarm, in that order.
Questions people ask
What is the best sump pump for the money?
The Wayne CDU790. It publishes 3,060 GPH at ten feet of lift in an epoxy-coated cast-iron housing, which is more measured flow at real lift per dollar than anything else we rank. The Superior 92341 is the cheaper cast-iron option if the pit is a secondary one.
Is a cheap sump pump a false economy?
Only in a hard-working pit. What a cheap thermoplastic pump gives up is heat handling, and heat only matters when the pump runs often or runs long. In a basement whose pit cycles twice a day, the cheap pump is genuinely adequate and the saved money buys a water alarm.
Does more horsepower mean better value?
No. Horsepower is an input. What you are buying is gallons per hour at your lift, and an oversized pump short-cycles, which shortens its life. Size to the lift and the inflow, then stop.
Why do you not list prices?
Because they change weekly and a figure written into an article is wrong within a month. Every button on this site goes to the live listing so you see the current price rather than ours.
Sources
Read next
The best sump pumps, ranked by what they move at real lift
Five pumps that cover almost every residential pit, compared on the number that matters: how much water they move at the height your basement actually needs.
The best cast iron sump pumps
Iron is not a luxury finish. It is a heat sink, and it only earns its price in a pit that makes the motor work.
How to choose a sump pump
Six decisions, in this order. Get the first two right and the rest are easy; get them wrong and no amount of horsepower rescues it.
What size sump pump do I need?
Two measurements and ten minutes give you a real answer. Almost everyone skips both and buys on horsepower instead.
Where to buy a sump pump
Every retailer in this category sells its own relabeled line next to the name brands. Knowing which is which is most of the decision.