Compatible with Bosch Pressure Washers (except AQT 42-13, AQT 45-14X and Advanced Aquatak).. Quick and easy to use with its 250mm swivel head.. Ideal for small and medium surfaces.. 250 mm cleaning head ideal for cleaning patios and driveways of small to medium area. Swivel joint for easy handling and maximum efficiency. Flange around the brush prevents splashes on the sides. The Bosch Aquasurf 250 Patio Cleaner is a spray nozzle attachment for the Bosch AQT high pressure washer range. It increases the functionality of your pressure washer making it the perfect attachment for cleaning and removing stubborn dirt from your patio. It has a pivoted joint and quick connections making it quick and easy to use.