Accessories by Westinghouse. Details:The Westinghouse 15” pressure washer surface cleaner attachment is intended for cleaning various surface materials like brick, wood, concrete, and more. Both beginners and professionals will enjoy this easy to use and reliable attachment in their homes or at their businesses. The 15” cleaning area will make quick work of large, flat areas both horizontally and vertically. Rated up to 3400 PSI, this surface cleaner is powerful enough to eliminate stuck-on dirt without harming the surface material. Compatible for use on most gas pressure washers with a 1/4” quick connect fitting making it an easy addition to any pressure washer’s toolkit. Both light and durable, this attachment can fit neatly inside the home or on a vehicle–making it perfect for either commercial or personal use.