With pressure washers rated up to 3600 PSI, creates a powerful jet of water It rotates at high speeds to increase both the intensity and cleaning area of the spray The nozzle accessory offers more than 50% cleaning power than conventional fan jet nozzles Compatible with most of pressure washers for an intense clean, improving cleaning efficiency Perfect for cleaning asphalt, concrete, metal, stone, tile flooring, driveways and patios Specification: Color: Blue Material: Brass & Stainless Steel GPM: 2.5, 4.0(optional) Max Working Pressure: 3600 PSI Connection Type: 1/4" Quick Connect Size: Approx.3.8 x 3.8 x 10 cm / 1.49 x 1.49 x 3.93 in Nozzle Size, 025: 2.5 GPM Nozzle Size, 040: 4.0 GPM Package Includes: 2 x Nozzle Note: Please allow 1-3mm error due to manual measurement, make sure that you do not mind before you bid Due to the different monitor and light effect, the actual color may be slightly different from the picture color