The catch
Westinghouse ePX3100v Electric Pressure Washer
Cannot roll to reposition.
Side by side
Westinghouse ePX3100v vs ePX3500: 3500 rolls where the other is carried, rated flow is unchanged
Quick verdict
Compact and carried by hand, the ePX3100v comes with a detachable foam cannon. The ePX3500 brings steering casters, onboard detergent and slightly higher rated pressure, with the same rated flow.
Before you buy
Why, and what it costs you
Pressure goes up by about 11 percent
Rated flow stays at 1.2 GPM, and ePX3500 adds 200 rated PSI.
Where this comes from
This is a specification difference and not a measured cleaning-time improvement. (2000 - 1800) divided by 1800 is 11.1 percent.
The catch
Westinghouse ePX3500 Electric Pressure Washer
A taller body needs more shelf room.
Westinghouse ePX3100v Electric Pressure Washer
- Why pick it
- The washer gets carried upstairs or kept on a low shelf.
- For washing vehicles, you like a detachable foam cannon.
- The catch
- Cannot roll to reposition.
Westinghouse ePX3500 Electric Pressure Washer
- Why pick it
- On a hard surface, you want the unit to roll along with you.
- Onboard detergent and a wider set of included nozzles appeal to you.
- The catch
- A taller body needs more shelf room.
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What this page compares
ePX3100v and ePX3500 compared on carrying, rolling, detergent use, shelf clearance and rated pressure. Maximum figures that don't line up are left out of the comparison.
Compact and carried by hand, the ePX3100v comes with a detachable foam cannon. The ePX3500 brings steering casters, onboard detergent and slightly higher rated pressure, with the same rated flow.
Which one fits
Pick the situations that sound like you
The shelf you store it on is 13 inches high
Body heights, as published, are 11 and 16.5 inches.
- Westinghouse ePX3100v Electric Pressure Washer
- Better fit
- Westinghouse ePX3500 Electric Pressure Washer
- Not suitable
You want a washer that rolls along behind you
The caster chassis is missing on ePX3100v.
- Westinghouse ePX3100v Electric Pressure Washer
- Not suitable
- Westinghouse ePX3500 Electric Pressure Washer
- Better fit
At working pressure you need a minimum of 2 GPM
The rating is 1.2 GPM for both.
- Westinghouse ePX3100v Electric Pressure Washer
- Not suitable
- Westinghouse ePX3500 Electric Pressure Washer
- Not suitable
You want to stay clear of fuel and engine oil
Each model is a corded electric.
- Westinghouse ePX3100v Electric Pressure Washer
- Similar
- Westinghouse ePX3500 Electric Pressure Washer
- Similar
In practice
Differences you will notice
Pressure goes up by about 11 percent
Rated flow stays at 1.2 GPM, and ePX3500 adds 200 rated PSI.
How we worked this out
This is a specification difference and not a measured cleaning-time improvement. (2000 - 1800) divided by 1800 is 11.1 percent.
With a 13-inch shelf, the decision is easy
The 16.5-inch body of ePX3500 does not clear that height, but the 11-inch body of ePX3100v does.
How we worked this out
There are 5.5 inches between the stored-body heights. Leave extra room for the hose and accessories.
Wheels count for more along an unbroken path
The route has to let the washer roll, or casters do not help.
How we worked this out
ePX3500 rolls on four casters, while ePX3100v has to be carried. Still, stairs and obstacles mean lifting either unit, which narrows the practical wheel advantage.
Option A
Westinghouse, ePX3100v
ePX3100v Electric Pressure Washer
Small electric washer with a carry handle and a detachable foam cannon. It is made for quick cleaning of vehicles, patio furniture and the house in general.
- Best for
- carrying a washer around for small jobs
Facts we checked
- The rated output is 1800 PSI at 1.2 GPM.
- Dry, it weighs 17.6 lb.
- Included are a detachable foam cannon and tips of 15-degree, 25-degree and turbo.
- Releasing the trigger makes the Total Stop System stop the pump.
Option B
Westinghouse, ePX3500
ePX3500 Electric Pressure Washer
Low and stable on four wheels, this electric has a built-in soap tank and a compact footprint, and it trails you as you work around a vehicle.
- Best for
- Car and patio cleaning with a low, stable washer
Facts we checked
- Rated at 2000 PSI and 1.2 GPM. Separate maxima are listed as 2500 PSI and 1.76 GPM
- A 20-ounce soap tank, axial pump, 25-foot hose and 35-foot GFCI cord
- Four 360-degree locking wheels under a body of approximately 19 pounds
Spec by spec
Where they really differ
| Spec | Westinghouse ePX3100v Electric Pressure Washer | Westinghouse ePX3500 Electric Pressure Washer | In practice |
|---|---|---|---|
| Mobility | Carry handle, no rolling chassis | Four locking steering casters | Decide based on whether you will carry between locations or roll during a job. |
| Rated output | 1800 PSI at 1.2 GPM | 2000 PSI at 1.2 GPM | ePX3500 has higher rated pressure and no increase in rated water delivery. |
| Detergent system | Detachable foam cannon | 20 oz onboard tank | Soap handling and the attachment routine are different. |
| Body height | 11 inches | 16.5 inches | A shelf that rules out ePX3500 can still hold ePX3100v underneath. |
| Dry weight | 17.6 lb | 19 lb | With a difference of 1.4 lb, chassis style may matter more than weight alone. |
Trade-offs
What each pick costs you
With Westinghouse ePX3100v Electric Pressure Washer
- Rated pressure is lower with the same 1.2 GPM.
With Westinghouse ePX3500 Electric Pressure Washer
- Onboard detergent is a different workflow from a separate foam cannon.
Change of plan
When the answer changes
Carrying and low-shelf storage are the main problems
Go with Westinghouse ePX3100v Electric Pressure Washer. Those constraints are addressed head-on by the smaller carry body.
Repositioning along a flat driveway is the main problem
Go with Westinghouse ePX3500 Electric Pressure Washer. Less carrying is needed with steering casters.
The job calls for 2 GPM or more at useful pressure
Neither model fits. Pick a model that documents a higher-flow operating point.
Decision guide
How to decide
The ePX3100v is the compact option you carry, and it has a detachable foam cannon. The ePX3500 adds steering casters, onboard detergent and a little more rated pressure at the same rated flow.
Storing the washer indoors
Measure the real shelf opening, and decide where the wet hose will go. Putting away the smaller carry body can be easier, since the caster chassis requires more vertical clearance.
Next to a parked car
The ePX3500 can trail along over a clear hard surface. A foam cannon on the ePX3100v changes how you apply soap. Neither feature guarantees a better wash, so go with the setup you will be comfortable using.
How to read the output figures
Go by the rated 1800 and 2000 PSI figures at 1.2 GPM. The maximum flow they advertise is measured at low pressure, so do not multiply it by maximum PSI to invent a cleaning score.
What this page can’t tell you
- Neither a nozzle-output test nor a cleaning-speed test was performed. The rated figures come from the manufacturer.
By the numbers
What the data shows
What we found across the pressure washers we compare, plus the checked facts behind each finding.
How many fit
Only 5 of the 28 models checked meet every need here: “Room for storage is limited”, “I have obstacles and uneven yards to work around”, “Cars and motorcycles are mostly what I wash”, and “I work with soap or a foam cannon”.
5 models fit, out of 28 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “Room for storage is limited”, “I have obstacles and uneven yards to work around”, “Cars and motorcycles are mostly what I wash”, and “I work with soap or a foam cannon”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Westinghouse ePX3100v Electric Pressure Washer |
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| Westinghouse ePX3500 Electric Pressure Washer |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Westinghouse ePX3100v Electric Pressure Washer
The washer gets carried upstairs or kept on a low shelf.
See price & reviews on AmazonWestinghouse ePX3500 Electric Pressure Washer
On a hard surface, you want the unit to roll along with you.
See price & reviews on AmazonEach link opens in a new tab.
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