What size spray tips do I need? How do I maximize the pressure?

One of the most important adjustments for better pressure washing performance is your nozzle number. As the nozzle number decreases, the orifice gets smaller and the PSI increases. On the other hand, as the nozzle number increases, the orifice gets larger and the PSI decreases. Choosing a nozzle with an excessively large orifice will reduce cleaning performance, while selecting one that is too small can create excessive PSI, or even damage your pressure washer.

Click the link here. Enter your GPM and PSI to generate your GPM and PSI to generate your optimal nozzle size.

IMPORTANT NOTE:

The 12" Surface Cleaner & 14" Surface Cleaner have 1/8" Threads. The following models have 1/4" Threads: 14.5", 15", 20", and 21" Surface Cleaners.

The 18" Stainless Steel Surface Cleaner has an updated spray bar. The old spray bar (curved ends) has 1/8" threaded spray tips. The new spray bar has 1/4" threads. See image below for reference.