Amazon offers Greenworks 11" Surface Cleaner Universal Attachment for . Free shipping with Prime or on orders over $25.

Product Description: 
GreenWorks offer a range of systems to choose from in corded and cordless tools. Leading in innovation, the corded Lawn system offers a variety of tools to get all your yard work done quickly and efficiently. Whether you need something economical or with greater performance, the GreenWorks Corded Lawn Tools provide reliable options without the hassle of gas or the high cost of operation throughout the years. Get started within seconds and leave the gas hassle behind. Choose from trimmers, chainsaws, mowers, snow throwers, dethatchers, pressure washers.

• 11” CLEANING WIDTH : works great for driveways, sidewalks, patios and decks.
• VERSATILE : 1/4-inch quick connect compatible with most pressure washers.
• 1 YEAR WARRANTY