Comparison Summary
For most households, the Westinghouse ePX3500 offers the most versatile balance: 2,000 rated PSI, 1.2 rated GPM, five tips, an onboard soap tank and a compact four-wheel body. Choose the larger WPX3000e when its 2,600 rated PSI, longer cord and bigger tank better fit substantial residential work; it weighs 36.8 pounds rather than about 19. The Greenworks GPW3001 is another stronger-output option, but its advertised 2.0 GPM occurs at 100 PSI, not at 3,000 PSI. For a washer you would rather carry than roll, the ePX3100v has a built-in handle and foam cannon, with a shorter 20-foot hose. (cdn.westinghouseoutdoorpower.com)
Buying Guide
Sizing and Capacity
Size here means both the space the washer occupies and the area you can clean before moving it. The ePX3500 stands 16.5 inches tall and weighs about 19 pounds, making it easier to store than the 36.8-pound, steel-frame WPX3000e. The ePX3100v’s carry handle suits trips between work areas; a wheeled cart is more convenient if the machine can remain on the ground. Detergent capacity also changes the routine: the ePX3500 has a 20-ounce tank, while the WPX3000e has a 0.45-gallon tank. Neither capacity tells you how much driveway one fill will cover; detergent use depends on the task. (westinghouseoutdoorpower.com)
Feature Tradeoffs
Choose nozzles for the surfaces you actually wash. The Greenworks 5110202 and CRAFTSMAN CMEPW1700 include 40° tips for a broader spray, while the ePX3500 adds 15°, 25°, turbo, soap and 0° options. A narrow or turbo spray gives you another approach to stubborn dirt, not permission to use it on paint, soft wood or every finish. For detergent, distinguish an onboard tank on the ePX3500 or CMEPW1900 from the ePX3100v’s detachable foam cannon and the CMEPW1700’s soap applicator bottle. The WPX3000e accepts certain M22 accessories, but compatibility is not an included accessory. (westinghouseoutdoorpower.com)
Best For, Avoid If
| Profile |
Recommended Product |
Why It Fits |
Avoid If |
| Household with mixed car, patio and fence chores |
Westinghouse ePX3500 |
Five tips, a soap tank and compact four-wheel handling cover several routine tasks. |
You want the WPX3000e’s higher rated pressure or larger detergent tank. |
| Owner cleaning larger paved or fenced areas |
Westinghouse WPX3000e |
2,600 rated PSI, 25-foot hose, 35-foot cord and 0.45-gallon tank suit a more substantial setup. |
A 36.8-pound frame is difficult to move or store. |
| Buyer seeking a five-tip, brushless corded model |
Greenworks GPW3001 |
Its published flow figures state the pressure conditions, making the output tradeoff easier to assess. |
A roughly 52-pound washer is impractical for your storage or route. |
| Person carrying a washer between small jobs |
Westinghouse ePX3100v |
Built-in handle and included foam cannon suit portable detergent application. |
You need a hose longer than 20 feet or prefer a wheeled body. |
| Occasional car washer with limited shelf space |
CRAFTSMAN CMEPW1700 |
Compact body, onboard accessory storage and a 40° tip suit lighter chores. |
Your main project is a broad, stubbornly dirty paved area. |
Key Specs to Compare
Read the condition attached to every PSI and GPM figure. Westinghouse lists the ePX3500 at 2,000 rated PSI and 1.2 rated GPM; its 2,500 maximum PSI is an initial-discharge figure, while 1.76 maximum GPM is specified without a nozzle at minimum pressure. Its WPX3000e lists 2,600 rated PSI and 1.1 rated GPM. Greenworks makes the GPW3001 comparison especially clear: 1.1 GPM at 3,000 PSI versus 2.0 GPM at 100 PSI. Do not combine separate maximums into an ordinary-use output figure. Where a listing gives only a maximum, compare its controls, reach and intended workload too. (cdn.westinghouseoutdoorpower.com)
Setup and Handling Considerations
Map the outlet, water connection and farthest cleaning spot before deciding whether a hose is long enough. The WPX3000e and CMEPW1900 pair 25-foot hoses with 35-foot cords; the ePX3100v has a 20-foot hose, so it may need repositioning sooner. Keep cord and hose lengths separate when planning reach—the machine needs to remain connected to both. Compare where it will travel as well: the ePX3500’s small swiveling wheels suit maneuvering on a relatively even work area, whereas carrying the ePX3100v may be simpler around steps. Check the exact model and included kit before setting up accessories; similarly named washers and bundles need not contain the same equipment.
Maintenance and Longevity
Electric models avoid gas-engine oil, fuel and spark-plug tasks, but the water path and accessories still need attention. Follow the model’s manual for water-supply, nozzle-cleaning and storage instructions; Westinghouse warns against running its ePX3500 pump after the water supply has been turned off. An auto-stop pump, as listed for several Westinghouse picks, stops when the trigger is released, but does not replace proper water supply or storage practices. Store the machine and its hose as directed, particularly where freezing is possible. Check a limited warranty’s terms for the exact model rather than treating its duration as a promise against all wear. (cdn.westinghouseoutdoorpower.com)
Reliability Signals
Useful documentation names the exact model, operating conditions, included parts and support terms. The ePX3500 manual provides rated figures alongside maximums; CRAFTSMAN identifies the CMEPW1900’s three included nozzles and hose. Resolve disagreements before buying: the ePX3050 listing describes a foam cannon, three tips and three-year limited coverage, while a Westinghouse product page describes a soap applicator, two tips and two-year limited coverage. The GPW3001 listing also states a different warranty period from Greenworks’ corded product page, which specifies separate limited tool and brushless-motor terms. Confirm the current kit and warranty for the exact item offered rather than assuming either description applies to every variant. (cdn.westinghouseoutdoorpower.com)
How to Compare Reviews
Search by the complete model identifier, then check that the account concerns the same corded washer, included accessories and kind of cleaning you plan to do. Feedback on a Greenworks GPW3001 bundle containing an additional cordless cleaner does not establish what comes with the standalone corded washer. For an ePX3100v, look for details about carrying it, using its foam cannon and working with its 20-foot hose; for a WPX3000e, look for accounts that identify the larger frame and the surface being cleaned. Give more weight to specific descriptions of setup or limitations than to an unexplained statement that a washer is powerful.
Common Mistakes
The first mistake is treating maximum PSI and maximum GPM as simultaneous: their test conditions can differ. Another is buying a narrow spray tip for speed without considering the surface; start with a suitable broader pattern for a vehicle or delicate finish and follow the washer’s instructions. Do not mistake an M22-compatible accessory for one supplied in the carton, or an onboard soap tank for a foam cannon. Finally, check the model printed on the offer. The ePX3100, ePX3100v and ePX3050 have different handling and accessory arrangements despite their similar names.
Frequently Asked Questions
Is the highest advertised PSI the best way to choose?
No. Check whether PSI is rated or maximum, then compare flow under the stated condition, nozzles and the surface you intend to clean. The ePX3500’s rated 2,000 PSI and 1.2 GPM are more useful for a like-for-like starting point than treating its separate maximum figures as simultaneous output.
Which pick includes a foam cannon?
The ePX3100v listing includes a detachable foam cannon. The ePX3050 listing also names one, but Westinghouse product information describes different accessories for that model, so confirm the exact ePX3050 kit before ordering. A soap tank or applicator is not automatically a foam cannon.
Do I need a large washer for washing a car?
Not necessarily. The Greenworks 5110202 and CRAFTSMAN CMEPW1700 offer broader 40° tips for light-duty jobs. Select a spray and technique appropriate to the finish rather than choosing a machine by maximum pressure alone.
Does the Greenworks GPW3001 deliver 2.0 GPM at 3,000 PSI?
No. Greenworks specifies 1.1 GPM at 3,000 PSI and 2.0 GPM at 100 PSI for the corded GPW3001. Check that the offer is for the corded washer and not a bundle with an additional cordless cleaner. (greenworkstools.com)
Final Recommendation
Choose the Westinghouse ePX3500 for the best all-around mix of rated output, nozzle choice, soap application and compact handling. If larger residential surfaces are your main job and you have room for a heavier frame, choose the Westinghouse WPX3000e for its higher rated pressure, larger tank and 35-foot cord. For short jobs that require carrying the machine between locations, the Westinghouse ePX3100v is the more practical alternative.