Greenworks 2-in-1 Undercarriage Cleaner and Water Broom Pressure Washer Attachment — 11" Swath, 1/4" Quick Connect

The Greenworks 2-in-1 Undercarriage Cleaner + Water Broom is a dual-function pressure washer attachment that clears an 11-inch swath for undercarriage rinsing and surface sweeping with three high-performance nozzles.

Built to speed up outdoor cleaning, this accessory converts your pressure washer into both an undercarriage rinsing tool and a water broom for sidewalks, driveways and decks. It connects via a universal 1/4" quick connect and works with gas and electric pressure washers up to 3,300 PSI, giving you a practical, time-saving solution for removing dirt, sand, road salt and loose debris without bending or juggling multiple attachments.

How does the undercarriage mode make vehicle cleaning easier?

Undercarriage mode lets you rinse away trapped grime beneath cars, trucks and trailers without crawling under the vehicle. The angled body and pivoting quick connect align the spray under low-clearance surfaces so you can clean quickly and safely.

• 11-inch cleaning path reaches under bumpers and side skirts
• Removes road salt, mud, and sand that cause corrosion
• Pivoting 1/4" quick connect keeps spray aligned without manual adjustment

What surfaces can the water broom mode handle effectively?

Switch to water broom mode for broad, even coverage when rinsing sidewalks, driveways, patios and decks. Three coordinated nozzles distribute flow across the 11-inch width to sweep away leaves, loose soil and small debris in fewer passes than a single nozzle wand.

• Three nozzles provide consistent spray across the full 11-inch swath
• Ideal for concrete, pavers, wood decking and asphalt surfaces
• Speeds up jobs compared with standard single-nozzle attachments

Will this attachment work with my pressure washer and connector?

The Greenworks attachment uses a 1/4" quick connect designed to be universally compatible with most pressure washer wands and couplers. It is rated for use with gas and electric pressure washers up to 3,300 PSI, so it fits a wide range of home and light-commercial machines.

• 1/4" quick connect for easy installation and removal
• Compatible with washers up to 3,300 PSI (gas or electric)
• Pivoting joint helps maintain correct spray angle on uneven surfaces

How should I maintain and use the attachment for long life?

Rinse internal passages after heavy sediment or salt exposure and inspect nozzles for clogging. Store dry and protected from freezing or direct UV to preserve seals and the quick-connect fitting.

• Flush with clean water after use to remove grit and salt
• Check and clear nozzles to maintain even spray patterns
• Store indoors or shaded to avoid prolonged sun and freeze damage

Who is this for: Homeowners, detailers, and property maintenance pros who want a single attachment to speed up rinsing under vehicles and sweeping large flat surfaces. If you routinely remove road salt, mud, leaves or sand and need a durable, universal pressure-washer accessory that reduces bending and repeat passes, the Greenworks 2-in-1 Undercarriage Cleaner + Water Broom is designed to simplify those jobs.