Main trade-off
Westinghouse ePX3100v Electric Pressure Washer
No wheels for repositioning.
Head-to-head
Westinghouse ePX3100v vs ePX3500: 3500 rolls instead of carrying, rated flow stays the same
The short answer
ePX3100v is the compact carry option with a detachable foam cannon. ePX3500 adds steering casters, onboard detergent and slightly more rated pressure at the same rated flow.
Before you choose
The reasoning and the trade-offs
The pressure increase is about 11 percent
ePX3500 adds 200 rated PSI while keeping rated flow at 1.2 GPM.
What this is based on
(2000 - 1800) divided by 1800 is 11.1 percent. This is a specification difference, not a measured cleaning-time improvement.
Main trade-off
Westinghouse ePX3500 Electric Pressure Washer
Taller body needs more shelf clearance.
Westinghouse ePX3100v Electric Pressure Washer
- Choose it for
- You carry the washer upstairs or keep it on a low shelf.
- You prefer a detachable foam cannon for vehicle washing.
- Main trade-off
- No wheels for repositioning.
Westinghouse ePX3500 Electric Pressure Washer
- Choose it for
- You want the unit to roll alongside you on a hard surface.
- You prefer onboard detergent and a broader included nozzle set.
- Main trade-off
- Taller body needs more shelf clearance.
About this comparison
Compare ePX3100v and ePX3500 for carrying, rolling, detergent use, shelf clearance and rated pressure rather than mismatched maximum figures.
ePX3100v is the compact carry option with a detachable foam cannon. ePX3500 adds steering casters, onboard detergent and slightly more rated pressure at the same rated flow.
Winner by situation
Start with what you need it to do
The storage shelf is 13 inches high
Published body heights are 11 and 16.5 inches.
- Westinghouse ePX3100v Electric Pressure Washer
- Better fit
- Westinghouse ePX3500 Electric Pressure Washer
- Not suitable
You want the washer to roll behind you
ePX3100v lacks the caster chassis.
- Westinghouse ePX3100v Electric Pressure Washer
- Not suitable
- Westinghouse ePX3500 Electric Pressure Washer
- Better fit
You need at least 2 GPM at working pressure
Both are rated at 1.2 GPM.
- Westinghouse ePX3100v Electric Pressure Washer
- Not suitable
- Westinghouse ePX3500 Electric Pressure Washer
- Not suitable
You want to avoid fuel and engine oil
Both are corded electric models.
- Westinghouse ePX3100v Electric Pressure Washer
- Similar
- Westinghouse ePX3500 Electric Pressure Washer
- Similar
What matters in practice
The differences that matter
The pressure increase is about 11 percent
ePX3500 adds 200 rated PSI while keeping rated flow at 1.2 GPM.
How we reached this conclusion
(2000 - 1800) divided by 1800 is 11.1 percent. This is a specification difference, not a measured cleaning-time improvement.
A 13-inch shelf makes the decision simple
ePX3100v's 11-inch body clears that height, while ePX3500's 16.5-inch body does not.
How we reached this conclusion
The stored-body heights differ by 5.5 inches. Allow additional room for the hose and accessories.
Wheels matter more on a continuous path
Casters help only when the route lets the washer roll.
How we reached this conclusion
ePX3500 rolls on four casters. ePX3100v must be carried, but stairs and obstacles require lifting either unit, narrowing the practical wheel advantage.
Choice A
Westinghouse, ePX3100v
ePX3100v Electric Pressure Washer
A small carry-handle electric washer with a detachable foam cannon, designed for quick vehicle, patio-furniture and household cleaning.
- Best matched use
- carrying a washer between small jobs
Checked facts
- Rated output is 1800 PSI at 1.2 GPM.
- Dry weight is 17.6 lb.
- A detachable foam cannon and 15-degree, 25-degree and turbo tips are included.
- Total Stop System stops the pump when the trigger is released.
Choice B
Westinghouse, ePX3500
ePX3500 Electric Pressure Washer
A low, stable four-wheel electric with an integrated soap tank and compact footprint that follows the user around a vehicle.
- Best matched use
- Stable low-profile car and patio cleaning
Checked facts
- Rated 2000 PSI at 1.2 GPM. 2500 PSI and 1.76 GPM listed as separate maxima
- 25-foot hose, 35-foot GFCI cord, axial pump and 20-ounce soap tank
- Approximately 19-pound body on four 360-degree locking wheels
Meaningful differences
What changes the fit
| What changes | Westinghouse ePX3100v Electric Pressure Washer | Westinghouse ePX3500 Electric Pressure Washer | Why it matters |
|---|---|---|---|
| Mobility | Carry handle, no rolling chassis | Four locking steering casters | Choose around carrying between locations or rolling during a job. |
| Rated output | 1800 PSI at 1.2 GPM | 2000 PSI at 1.2 GPM | ePX3500 raises rated pressure without increasing rated water delivery. |
| Detergent system | Detachable foam cannon | 20 oz onboard tank | The soap handling and attachment routine differ. |
| Body height | 11 inches | 16.5 inches | ePX3100v can fit beneath a shelf that excludes ePX3500. |
| Dry weight | 17.6 lb | 19 lb | The difference is 1.4 lb, so chassis style may matter more than weight alone. |
What you give up
Every choice has a cost
If you choose Westinghouse ePX3100v Electric Pressure Washer
- Lower rated pressure at the same 1.2 GPM.
If you choose Westinghouse ePX3500 Electric Pressure Washer
- Onboard detergent differs from a separate foam-cannon workflow.
Recommendation switch
The decision flips if...
The main problem is carrying and low-shelf storage
Choose Westinghouse ePX3100v Electric Pressure Washer. The smaller carry body directly addresses those constraints.
The main problem is repositioning along a flat driveway
Choose Westinghouse ePX3500 Electric Pressure Washer. Steering casters reduce repeated carrying.
The job needs at least 2 GPM at useful pressure
Choose neither. Choose a model with a documented higher-flow operating point.
What matters in practice
How to make the call
A washer stored indoors
Measure the actual shelf opening and plan where the wet hose goes. The smaller carry body can be easier to put away, while the caster chassis needs more vertical clearance.
Around a parked car
ePX3500 can follow along a clear hard surface. The ePX3100v foam cannon changes the soap routine. Neither feature guarantees better washing, so choose the setup you will use comfortably.
Reading the output numbers
Use the rated 1800 and 2000 PSI figures at 1.2 GPM. Their maximum-flow advertising is measured at low pressure and should not be multiplied by maximum PSI to invent a cleaning score.
What this comparison cannot tell you
- No nozzle-output or cleaning-speed test was performed. Rated figures are manufacturer values.
What the facts say
What the comparison shows
Useful conclusions from the current pressure washers comparison, followed by the checked facts used to reach them.
Compared set
Only 5 of 28 models checked match every need here: “Storage space is tight”, “I move around obstacles and uneven yards”, “I mainly wash cars and motorcycles”, and “I use soap or a foam cannon”.
5 matching models from 28 checkedSee the checked facts and calculation notes
Match countThe count uses the current product-to-need assignments for “Storage space is tight”, “I move around obstacles and uneven yards”, “I mainly wash cars and motorcycles”, and “I use soap or a foam cannon”. A need with no documented match does not count.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Westinghouse ePX3100v Electric Pressure Washer |
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| Westinghouse ePX3500 Electric Pressure Washer |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Westinghouse ePX3100v Electric Pressure Washer
You carry the washer upstairs or keep it on a low shelf.
See price & reviews on AmazonWestinghouse ePX3500 Electric Pressure Washer
You want the unit to roll alongside you on a hard surface.
See price & reviews on AmazonLinks open in a new tab.