Material: The 360° rotating turbine nozzle is made of copper alloy on the inside and highly wear-resistant non-slip rubber on the outside. The high-pressure and high-temperature resistant ceramic atomizing core and the 1/4" quick connector are made of stainless steel (Type 304). Working pressure up to 3600 psl, 250 bar, 140°F / 60°C, maximum pressure up to 4000 psl, 276 bar, 158°F / 70°C, nozzle opening 1.2 mm (0.40). 1/4" quick connect design, can be connected to the quick connect bar for faster application. Suitable for most pressure washers on the market. Rotating pressure washer nozzles available for most pressure washers, our nozzles are ideal for quickly, easily, and effectively cleaning dirty brick, concrete, vinyl, or any other large amount of dirt or heavily contaminated areas. Our 360° rotating turbine heads are designed to provide 200% greater cleaning efficiency than traditional fan nozzles. High flow rate and precision. Can operate for a long time.