What size pressure washer nozzle should I get? Well, that depends... First, you need to know what the maximum output PSI (pounds per square inch) is or BAR. Also, how many gallons per minute (GPM) or Liters Per Minute (L/min)  your pressure washer puts out.. With that information, use the chart Attached to most of the below products to see what "series" spray nozzle size to use.

Start at the top with the PSI of your pressure washer. Follow that column down until you find the closest match for the GPM/LPM of your machine.

 Important Note: Using a nozzle that is too small will damage your equipment.