Karcher Powerful Turbo Nozzle for Gas Power Pressure Washers, 4000 PSI Rating The Karcher Promise: Cleaner. Quicker. Increases Cleaning Power by Up to 50% Perfect for hard to clean surfaces like driveways, asphalt, concrete and stone; not for delicate surfaces Offers the concentrated cleaning power of a zero degree nozzle with the wider cleaning area of a standard spray nozzle 1/4" quick connect male plug fits female couplers Fits most gas pressure washers between 2500 - 4000 PSI rating