The RYOBI 12 in. Surface Cleaner is the ideal choice for cleaning hard surfaces like driveways, patios, and sidewalks. This surface cleaner is compatible with electric or cordless pressure washers up to 3100 PSI and 1.2 GPM. This time saving accessory cleans up to 4X faster than a standard nozzle, with rotating high pressure water jets that provide a large, streak-free path. It is designed with three caster wheels to easily maneuver from one area to the next. The 12 in. surface cleaner easily attaches to a 1/4 in. quick connect wand, allowing you to move quickly between jobs. The RYOBI 12 in. Surface Cleaner is compatible with most electric and cordless pressure washer brands.. Efficient 12" Cleaning Path w/ Wheels for Ease of Use. Works with Electric & Cordless Pressure Washers up to 3100 PSI. Cleans Surfaces up to 4X Faster than a Standard Nozzle. Ideal for driveways, patios, and sidewalks. Cleans up to 4X faster than a standard nozzle. Rotating jets for a streak-free cleaning path. 1/4 in. quick-connect. 3 caster wheels for easy maneuvering. Fits most electric and cordless pressure washer up to 1200 - 3100 PSI 1.2 GPM. Fits Brands: Most electric pressure washers. Fits Models: Most electric pressure washers up to 3100 psi. Included: Nozzle cleaning tool,Wheels. Maximum Pressure (PSI): 3100 psi. Number of Nozzles: 2. Rotation speed (rpm): 1500. Product Depth (in.): 18 in. Product Height (in.): 5.5 in. Product Width (in.): 13 in. Width of Clearing Path (in.): 12