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Greenworks 12" Surface Cleaner Pressure Washer Attachment vs Westinghouse ePX3100v Electric Pressure Washer,

Updated July 2026 — Greenworks 12" Surface Cleaner Pressure Washer Attachment wins on weight and cleaning width, Westinghouse ePX3100v Electric Pressure Washer, wins on psi and price.

The Westinghouse ePX3100v offers superior cleaning power and versatility compared to the Greenworks attachment, making it the better choice for most users.

Why Greenworks 12" Surface Cleaner Pressure Washer Attachment is better

Price

Greenworks is significantly cheaper at $26.99.

Weight

Greenworks attachment is lighter since it is just an accessory.

Warranty

Both have a 3-year warranty.

Why Westinghouse ePX3100v Electric Pressure Washer, is better

Power

Westinghouse delivers 2100 max PSI.

Versatility

Includes detachable foam cannon and multiple nozzles.

Portability

Built-in carry handle enhances mobility.

Overall score

Greenworks 12" Surface Cleaner Pressure Washer Attachment
65
Westinghouse ePX3100v Electric Pressure Washer,
85

Specifications

SpecGreenworks 12" Surface Cleaner Pressure Washer AttachmentWestinghouse ePX3100v Electric Pressure Washer,
Max PSI02100
Max GPM01.76
Weight30 lbs17.6 lbs
Price$26.99$119.00
Warranty3 years3 years

Dimension comparison

Greenworks 12" Surface Cleaner Pressure Washer AttachmentWestinghouse ePX3100v Electric Pressure Washer,

Overview

When comparing the Greenworks 12" Surface Cleaner Pressure Washer Attachment and the Westinghouse ePX3100v Electric Pressure Washer, it's clear that these two products serve different purposes in the realm of cleaning. The Greenworks attachment is priced at $26.99, making it a budget-friendly option for those who already own a compatible pressure washer. In contrast, the Westinghouse ePX3100v is a standalone electric pressure washer priced at $119.00, offering a more robust cleaning solution with higher performance capabilities.

Cleaning Performance

The Westinghouse ePX3100v Electric Pressure Washer delivers a maximum pressure of 2100 PSI, which is significantly more powerful than the Greenworks attachment, designed to work in conjunction with other pressure washers. This means that if you need to tackle tough grime, like mildew or oil stains, the Westinghouse is the better choice due to its higher pressure and flow rate. The Greenworks attachment, with its 12-inch cleaning width, is suited for broader surface areas but lacks the standalone power to clean heavily soiled surfaces effectively.

Portability and Storage

In terms of portability, the Westinghouse ePX3100v is designed for easy transportation. Weighing only 17.6 pounds, it features a built-in carry handle that enhances its mobility. The Greenworks attachment, being an accessory, does not offer the same standalone portability since it relies on the user’s existing pressure washer setup. If storage space is a concern, the compact design of the Westinghouse makes it easy to tuck away when not in use, unlike the Greenworks, which requires a compatible pressure washer to function.

Versatility

The versatility of the Westinghouse ePX3100v is highlighted by its detachable foam cannon and three quick-connect nozzles, which allow users to tailor their cleaning approach for various surfaces, including cars and patios. The Greenworks attachment, while versatile in terms of compatibility with most pressure washers, does not offer the same level of adaptability since it is limited to its cleaning width and attachment to a pressure washer. For users looking for a multifunctional cleaning tool, the Westinghouse is the superior choice.

Warranty and Support

Both products come with a three-year warranty, offering peace of mind for users concerned about longevity and potential defects. The Westinghouse ePX3100v benefits from a nationwide customer service and support network, which can be advantageous for troubleshooting and servicing. On the other hand, while Greenworks also provides a warranty, support may vary based on the pressure washer used with the attachment. The structured support system of Westinghouse may appeal more to users who prefer a reliable customer service experience.

Price Comparison

When looking at the price difference, the Greenworks attachment is priced at $26.99, making it about 77% cheaper than the Westinghouse ePX3100v, which costs $119.00. This substantial price difference could make the Greenworks appeal to those who want to enhance their existing cleaning setup without making a large investment. However, for users seeking a comprehensive cleaning solution, the added cost of the Westinghouse may justify its advanced features and capabilities.

Usage Scenarios

The ideal usage scenario for the Greenworks attachment includes those who already own a pressure washer and are looking to expand its functionality for cleaning wider surfaces like driveways and patios. Conversely, the Westinghouse ePX3100v is perfect for individuals seeking an all-in-one cleaning solution, capable of handling a variety of surfaces and cleaning tasks effectively. If you require a powerful unit for heavy-duty cleaning, the Westinghouse is the better option.

Which should you buy?

Choosing between the Greenworks 12" Surface Cleaner Pressure Washer Attachment and the Westinghouse ePX3100v Electric Pressure Washer ultimately depends on your specific cleaning needs. If you already have a compatible pressure washer and want to enhance its capabilities at a low cost, the Greenworks attachment is a great choice. However, if you need a powerful, versatile, and portable cleaning machine, the Westinghouse ePX3100v stands out as the superior option, despite its higher price tag.