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Greenworks 2100 PSI 1.2 GPM 13Amp Compact Electric vs MJJC Foam Cannon S V3.0 with 1/

Updated August 2026 — Greenworks 2100 PSI 1.2 GPM 13Amp Compact Electric wins on accessories and durability, MJJC Foam Cannon S V3.0 with 1/ wins on price.

The Greenworks 2100 PSI is a powerful standalone pressure washer, while the MJJC Foam Cannon enhances existing pressure washers with thick foam. Choose based on your cleaning needs.

Why Greenworks 2100 PSI 1.2 GPM 13Amp Compact Electric is better

Power

2100 PSI for effective cleaning

Versatility

Includes multiple nozzles and soap applicator

Ease of Use

Push-button start and organized storage

Why MJJC Foam Cannon S V3.0 with 1/ is better

Price

More affordable at $86.99

Foam Quality

Produces thicker foam with less soap

Portability

Lightweight and easy to attach

Overall score

Greenworks 2100 PSI 1.2 GPM 13Amp Compact Electric
85
MJJC Foam Cannon S V3.0 with 1/
78

Specifications

SpecGreenworks 2100 PSI 1.2 GPM 13Amp Compact ElectricMJJC Foam Cannon S V3.0 with 1/
Max PSI2100N/A
GPM1.2N/A
Weight25 lbs2 lbs
Nozzles4 includedN/A
Foam TypeN/AThicker Foam

Dimension comparison

Greenworks 2100 PSI 1.2 GPM 13Amp Compact ElectricMJJC Foam Cannon S V3.0 with 1/

Overview

When it comes to pressure washers, the Greenworks 2100 PSI and the MJJC Foam Cannon S V3.0 present two distinct options for outdoor cleaning tasks. The Greenworks model is a powerful electric pressure washer designed for various surfaces, while the MJJC Foam Cannon is a specialized accessory that enhances the cleaning capabilities of pressure washers. With the Greenworks priced at $164.83 and the MJJC Foam Cannon at $86.99, buyers must consider their specific needs before making a decision.

Cleaning Power

The Greenworks 2100 PSI delivers a maximum pressure of 2100 PSI, making it suitable for medium-duty projects. This impressive power is complemented by a flow rate of 1.2 GPM, allowing it to tackle tough cleaning jobs like driveways, patios, and vehicles. In contrast, the MJJC Foam Cannon S V3.0 does not have its own pressure rating but operates within a range of 1300 to 3600 PSI, depending on the pressure washer it’s attached to. This means that while the Foam Cannon enhances the cleaning process with thicker foam, its effectiveness is contingent upon the pressure washer being used.

Features and Accessories

The Greenworks model comes with various accessories, including a turbo nozzle, a 25° nozzle, a 40° nozzle, and a soap applicator, making it versatile for different cleaning tasks. Its push-button start and internal storage for accessories add to its user-friendly design. On the other hand, the MJJC Foam Cannon boasts several upgrades, such as a structure that allows for 360-degree spray control and a straw tube for easier liquid consumption. While it excels in producing thick snow foam, it relies on the pressure washer’s performance for optimal results.

Portability and Design

The Greenworks pressure washer is designed for easy transport, featuring multiple grab points and wheels for mobility. It can be stored either vertically or horizontally, which is a significant advantage for those with limited storage space. Conversely, the MJJC Foam Cannon is a lightweight accessory that attaches easily to various pressure washers, making it portable in a different sense. However, it does not offer the same degree of standalone convenience as the Greenworks unit.

Price Comparison

The Greenworks 2100 PSI is priced at $164.83, while the MJJC Foam Cannon S V3.0 costs $86.99. This means the Greenworks model is about 17% more expensive than the Foam Cannon. Buyers must weigh the cost against the intended use; those looking for a comprehensive cleaning solution might find the investment in the Greenworks worthwhile, while those who already have a pressure washer may prefer the MJJC for its affordability and specialized functionality.

Performance and Efficiency

The Greenworks pressure washer is designed for effective cleaning of medium-duty projects, making it suitable for a range of outdoor tasks. Its 13 Amp universal motor ensures reliable performance every time, contributing to its sales rank of 10,028. In contrast, the MJJC Foam Cannon, while not a standalone cleaning machine, enhances the performance of existing pressure washers by producing a thicker, creamier foam that aids in cleaning. It also ranks slightly better at 9,898, indicating its popularity among users who prioritize foam quality.

User Experience

Users of the Greenworks 2100 PSI appreciate its ease of use, with features like a push-button start and organized storage for accessories. This design reduces setup time and enhances user satisfaction. The MJJC Foam Cannon also garners positive feedback for its ability to create rich foam with minimal soap, but some users may need to experiment with different nozzle sizes to achieve the best results based on their pressure washer's PSI. Both products focus on user convenience but cater to different aspects of the cleaning process.

Durability and Longevity

Greenworks is known for building durable products, and the 2100 PSI pressure washer is no exception. Its robust design is meant to withstand the rigors of outdoor cleaning. The MJJC Foam Cannon, while not as sturdy as a full pressure washer, is made to be functional and reliable when used correctly. However, its longevity depends largely on how well it is maintained and the quality of the pressure washer it is used with.

Which should you buy?

Choosing between the Greenworks 2100 PSI and the MJJC Foam Cannon S V3.0 ultimately depends on your specific cleaning needs. If you require a powerful, standalone pressure washer that can handle a variety of outdoor tasks, the Greenworks model is the better option despite its higher price. Conversely, if you already own a compatible pressure washer and are looking to enhance your cleaning capabilities with thick foam, the MJJC Foam Cannon offers a more economical solution. Assess your cleaning tasks and existing equipment to make the best choice for your needs.