Best Pressure Washer Surface Cleaners (2026): Kärcher, Westinghouse, Greenworks, Simpson and Sun Joe Compared

With a plain wand nozzle you clean a narrow stripe, so the result depends on how evenly you overlap your passes. A surface cleaner spins two jets inside a hood, so it cleans a wider path at a steady height. Simpson describes its model as streak-free. Per the listing, Kärcher keeps its nozzles at a fixed height to avoid streaks. Westinghouse says its model is up to 4 times faster than a regular wand. These are the makers' own claims.

The Picks at a Glance

The Picks

Kärcher 15" Surface Cleaner - Our Pick

Per the listing, this 15-inch attachment is for pressure washers rated 2,600-3,200 PSI. It has two spinning nozzles, keeps them at a fixed height to avoid streaks, and uses a shroud and splash skirt to limit overspray. It connects with a standard 1/4-inch quick-connect. The listing says it's for driveways, patios, decks and sidewalks, and that it can also clean hard vertical surfaces. It was sold by Amazon when we checked. We picked it because that PSI range fits a common class of homeowner gas washers.

Westinghouse 16.5" Stainless Steel (PWSCSS) - Higher-PSI Gas Washers

Per Westinghouse, the PWSCSS has a 16.5-inch cleaning path, a stainless steel deck, dual rotating jets, 360° swivel wheels, two steel extension wands, and a splash skirt. It's rated for up to 4,400 PSI and 4.2 GPM. Westinghouse lists its WPX3600, WPX3800 and WPX4400 washers as compatible and says the 1/4-inch quick-connect fits most gas pressure washers. It also says not to use it with electric machines. The warranty is 180 days (limited). It was sold by Amazon.

Greenworks 11" Rotating Surface Cleaner (30012) - For Electric Washers

Per Greenworks, this attachment has an 11-inch dual-nozzle head, a poly housing with a brush water guard, and a 1/4-inch quick-connect. It's rated for pressure washers up to 2,000 PSI. That range covers many electric washers, but check your model's rating. Greenworks lists driveways, floors, patios, decks and sidewalks as uses. It was sold by Amazon. If you own a Greenworks washer, see our Greenworks pressure washer guide.

Simpson 80165 15" Steel - Steel Shroud

Per Simpson, the 80165 has a powder-coated steel shroud, stainless steel nozzles, and two rotating jets. It's rated for cold-water gas washers from a recommended minimum of 2,200 PSI and 2.3 GPM up to 3,700 PSI, and water up to 140°F. Simpson's warranty is 90 days (limited accessory warranty). Simpson's own site now lists the 80165 as discontinued. It was still for sale on Amazon from a third-party seller when we checked, so confirm the seller and return policy.

Sun Joe SPX-PCA10 10" - For Sun Joe SPX Owners

Per Sun Joe, the SPX-PCA10 is a 10-inch deck and patio attachment with a brush. It's compatible with all Sun Joe SPX Series pressure washers and comes with a transfer adapter. The listing adds that it has dual spray nozzles. Sun Joe lists porches, patios, driveways, decks, boats, pavers, bricks and grills as uses. It was sold by a third-party seller. We only suggest it if you own an SPX Series washer; other washers should use one of the universal models above.

How to Choose

1. PSI and GPM range. Find your washer's PSI and GPM ratings in its manual or on its label, then choose an attachment whose stated range includes both numbers. Simpson, for example, lists a minimum as well as a maximum.

2. Gas or electric. Among these picks, only the Greenworks (up to 2,000 PSI) and the Sun Joe (SPX Series) are aimed at lower-pressure machines. Westinghouse says its model is not for electric washers.

3. Width. A wider deck covers more ground on each pass. Widths here run from 10 to 16.5 inches.

4. Build. Pick between a steel deck (Westinghouse, Simpson) and a plastic or poly housing (Greenworks), and decide whether you want wheels (Westinghouse).

If you're still choosing a washer, see our Ryobi, Greenworks, DeWalt and EGO guides, or rent vs. buy.

Using a Surface Cleaner

Read both the washer manual and the attachment manual first. Sweep loose debris off the surface, attach the cleaner with the washer off, and keep it moving as you work. A round hood can't reach into corners or right up against walls, so finish the edges with a regular nozzle. Our pressure washer tips for beginners explains which nozzle to use. On pavers, stamped or sealed concrete, soft stone, or wood, test a hidden spot first and follow the maker's guidance for that surface. For long driveways, see our pressure washer hose guide. Before cold weather, drain the attachment and store it with your washer, as covered in how to winterize a pressure washer.

Common Questions

Will any surface cleaner fit my pressure washer?

The 1/4-inch quick-connect fits most wands, but check the pressure and flow limits too. Choose one whose stated PSI (and GPM, where listed) range includes your washer's ratings. Westinghouse, for instance, says its model is for gas washers only.

Can I use a surface cleaner with an electric pressure washer?

Yes, if the attachment is rated for it. Greenworks rates its 11-inch model for washers up to 2,000 PSI, and the Sun Joe SPX-PCA10 is made for Sun Joe's SPX Series. The Kärcher, Simpson and Westinghouse models here are rated for higher-pressure gas machines.

Can I use it with hot water?

Not the Simpson 80165. Simpson says it is for cold water only, up to 140°F. For the others, check the manual.

Bottom Line

For a 2,600-3,200 PSI gas washer, get the Kärcher 15-inch (sold by Amazon). For a gas washer up to 4,400 PSI, the Westinghouse 16.5-inch has a stainless deck and wheels. For an electric washer up to 2,000 PSI, get the Greenworks 11-inch. Whichever you choose, check its PSI and GPM range against your washer first.