1Two modes
Pull the pivoting coupler nut and rotate it until it locks. Nozzles up washes the underside; nozzles forward sweeps driveways and decks.
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Wash underneath without crawling-12%CODEcapitalone12Harfington 16-inch pressure washer undercarriage cleaner
A pressure washer attachment on wheels that you roll under the car to wash the underside. Rotate the coupler and it becomes a water broom for flat surfaces.
12%$50.84
Price with code · Harfington · as of 2026-10-09Code capitalone12 · 12% off
2Three wands included
One 13-inch 90° angled wand and two 16-inch extensions are included. Every part uses a 1/4-inch quick connect.
31,500–4,000 PSI
Working pressure is 1,500–4,000 PSI, and the page says it cleans better at 2,500 PSI or higher.
Key specs
- Cleaner size
- 15.5 × 4.9"
- Working pressure
- 1,500–4,000 PSI
- Connection
- 1/4" quick connect
- In the box
- Cleaner, 13" 90° wand, two 16" extensions
Good pick if
- You own a pressure washer and wash the underside yourself
- You also want to clean driveways or decks
Think twice if
- You have no pressure washer, or one under 1,500 PSI
FAQ
Is there a promo code?
Yes. Enter capitalone12 at Harfington checkout when buying the Harfington 16-inch pressure washer undercarriage cleaner for 12% off.
Which pressure washers does it fit?
Pressure washers with a 1/4-inch quick connect running at 1,500–4,000 PSI.
Can I return it?
The product page offers 30-day returns from delivery. Returns are free within the US; elsewhere you pay the return shipping.
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