vsversusfinder

Greenworks 12" Surface Cleaner Pressure Washer Attachment vs Westinghouse Foam Cannon for Pressure Washers -

Updated August 2026 — Greenworks 12" Surface Cleaner Pressure Washer Attachment wins on brand trust and customer reviews, Westinghouse Foam Cannon for Pressure Washers - wins on ease of use.

The Greenworks 12" Surface Cleaner is better for large area cleaning, while the Westinghouse Foam Cannon excels in detailing with foam. Choose based on your specific needs.

Why Greenworks 12" Surface Cleaner Pressure Washer Attachment is better

Cleaning Width

12-inch cleaning width for larger areas

Warranty

3-year warranty for durability

Sales Rank

Higher sales rank indicates popularity

Why Westinghouse Foam Cannon for Pressure Washers - is better

Price

Lower price at $17.99

Foam Quality

Produces thick foam for detailing

Versatility

Can be used on various surfaces

Overall score

Greenworks 12" Surface Cleaner Pressure Washer Attachment
85
Westinghouse Foam Cannon for Pressure Washers -
75

Specifications

SpecGreenworks 12" Surface Cleaner Pressure Washer AttachmentWestinghouse Foam Cannon for Pressure Washers -
BrandGreenworksWestinghouse
Max PSIN/A3600
Connector1/4-inch1/4-inch
Cleaning TypeSurfaceFoam
UsageOutdoorOutdoor

Dimension comparison

Greenworks 12" Surface Cleaner Pressure Washer AttachmentWestinghouse Foam Cannon for Pressure Washers -

Overview of the Greenworks 12" and Westinghouse Foam Cannon

The Greenworks 12" Surface Cleaner Pressure Washer Attachment and the Westinghouse Foam Cannon are both effective tools designed to enhance your pressure washing experience. While the Greenworks attachment focuses on surface cleaning, the Westinghouse foam cannon excels in applying soap for detailed cleaning tasks.

The Greenworks attachment is priced at $26.99, making it a practical choice for anyone needing to clean large outdoor surfaces like driveways and patios. In contrast, the Westinghouse foam cannon, priced at $17.99, offers a more specialized function for applying thick foam, ideal for car detailing and other cleaning applications.

Design and Functionality

The Greenworks 12" features a 12-inch cleaning width that enables users to cover substantial areas quickly. This design is particularly advantageous for cleaning driveways, sidewalks, patios, and decks, allowing for efficient and effective cleaning. The attachment connects easily with most pressure washers via a 1/4-inch quick connect, enhancing its versatility.

On the other hand, the Westinghouse Foam Cannon is designed specifically to produce a thick lather of foam that adheres to surfaces. It transforms cleaning concentrate into foam, ensuring even coverage on cars and outdoor areas. This foam cannon also boasts a 1/4-inch female quick connect, making it universally compatible with most pressure washers. It provides users the ability to easily adjust the foam concentration, which is crucial for varying cleaning tasks.

Cleaning Performance

When it comes to cleaning performance, the Greenworks 12" attachment shines with its ability to tackle large areas efficiently. Its wide cleaning path reduces the time and effort required to clean expansive surfaces, making it a top choice for those with significant outdoor spaces. The Greenworks attachment holds a sales rank of 2366, reflecting its popularity and effectiveness in the market.

In contrast, the Westinghouse Foam Cannon excels in delivering professional-grade results. It is designed to create a thick foam that clings to surfaces, enhancing the cleaning process. This feature is particularly useful for removing dirt and grime from vehicles and other delicate surfaces. Although it has a lower sales rank of 5157, its specialized function appeals to users seeking a thorough detailing tool.

Versatility

The Greenworks 12" is versatile enough to handle various outdoor cleaning tasks. Its compatibility with most pressure washers allows users to switch between different machines easily, making it a convenient addition to any cleaning arsenal. The three-year warranty also adds value, ensuring long-term reliability and performance.

The Westinghouse Foam Cannon also boasts versatility, as it can be used for a range of cleaning tasks beyond just vehicles. Users can apply foam to windows, fences, and outdoor furniture, demonstrating its multifaceted capabilities. The foam cannon's design encourages easy swapping of nozzles, allowing users to adapt to different cleaning needs quickly.

Ease of Use

The Greenworks 12" attachment is designed with user-friendliness in mind. The quick connect feature enables fast and straightforward attachment to pressure washers, allowing users to get started almost immediately. Its lightweight design makes it easy to maneuver, even for those who may not be experienced with pressure washing.

The Westinghouse Foam Cannon is similarly easy to use. Users simply fill the soap tank with their preferred cleaning concentrate, and the cannon does the rest, generating foam quickly and efficiently. This simplicity makes it suitable for both novices and seasoned users alike. The adjustable suds and spray concentration further enhance its usability, allowing for custom cleaning experiences.

Price Comparison

The Greenworks 12" costs $26.99, while the Westinghouse Foam Cannon is priced at $17.99, making it about 33% cheaper than its competitor. This price difference may influence buyers who are budget-conscious or looking for a more affordable option for their cleaning needs. However, the value each product provides also plays a crucial role in determining which is the better investment for specific applications.

While the Greenworks attachment offers a broader cleaning capability, the Westinghouse foam cannon specializes in providing a superior foaming experience. Buyers should consider how often they will use each tool and for what purposes to determine which price point fits their budget and needs.

Warranty and Customer Support

The Greenworks 12" comes with a three-year warranty, indicating the manufacturer's confidence in its durability and long-term performance. This warranty can offer peace of mind for consumers who may have concerns about the longevity of their purchase.

In contrast, the Westinghouse Foam Cannon includes a 180-day warranty. While this is shorter than Greenworks', it still reflects the brand's commitment to quality. Westinghouse has a long history of providing reliable products, which may reassure customers about their purchase's quality and performance.

Which should you buy?

Choosing between the Greenworks 12" Surface Cleaner Pressure Washer Attachment and the Westinghouse Foam Cannon ultimately depends on your specific cleaning needs. If you are looking for a versatile tool that covers large outdoor surfaces efficiently, the Greenworks attachment is the better choice with its broader cleaning capacity and longer warranty. However, if your primary focus is on detailing tasks and achieving a thick foam for thorough cleaning, the Westinghouse foam cannon, being more affordable, might be the ideal option. Consider how you will use these tools to make the best decision for your cleaning projects.