Yamaha ACC-31056-00-13 Surface Cleaner,15 inches
https://www.amazon.com/gp/product/B00EYZE6C0/
The Yamaha ACC-31056-00-13 Surface Cleaner cleans large surfaces up to 4x faster than a standard nozzle. Rotating nozzles provide streak-free, even cleaning. It has a 15-inch cleaning path for much faster cleaning. It attaches easily to any quick connect capable pressure washer. Recommended for many gas-powered washers up to 3300 psi.
I’ve had a pressure washer for many years. I’ve done the cleaning of the concrete for years too, but it’s been awhile and doing it by hand with the medium spray tip was taking a while on the first section. I got a new pressure washer this season and wanted to get the surface cleaner since I changed a number of accessories too. Cleaning concrete is simply amazing with this accessory. Once you get the hang of it regarding the lines and overlap, it goes amazingly fast! Now I am disappointed that I can’t use it again for a couple of years, it was actually fun.