Find The Ideal Nozzle For Your Next Detailing Project

When it comes to getting the best performance from your pressure washer, the nozzle you choose makes all the difference. Many people assume that nozzle color is the only thing to consider, but that’s just part of the story. Selecting the wrong nozzle can lead to reduced cleaning efficiency, unnecessary wear on your equipment, or even permanent damage to the surface you’re washing.

Know Your Machine’s GPM and PSI

Every pressure washer has two ratings: GPM (gallons per minute) and PSI (pounds per square inch). Together, these tell you how much water flows through the machine and how much pressure it delivers.

• You can usually find these ratings on a label or metal plate on the pump.
• If not, check your user manual or the manufacturer’s website.

Once you have these numbers, you can determine the correct nozzle orifice size.

• Too large an orifice → water pressure drops, and cleaning power suffers.
• Too small an orifice → water flow is restricted, placing extra strain on your machine.

Quick Reference: Nozzle Orifice Sizes

Δ: May compromise performance and cause malfunction.
* CU = Working Pressure (PSI) × Operating Flow Rate (GPM).

Δ: May compromise performance and cause malfunction.
* CU = Working Pressure (PSI) × Operating Flow Rate (GPM).

⚠️ Tip: Always start with a wider spray pattern (like 25° or 40°) and move narrower only if you need more power.

Match the Nozzle Degree to the Job

Nozzles aren’t just sized they’re also shaped to spray water at different angles. This is why they’re color-coded. The smaller the spray angle, the more concentrated and powerful the stream will be.

Quick Reference: Nozzle Colors and Uses

Putting It All Together

To select the right nozzle, you’ll need both the orifice size (based on your GPM and PSI) and the spray angle (based on your cleaning project). Don’t Forget Accessories Nozzles are just one piece of the puzzle. For safe and effective cleaning, make sure you’re also using the right hose, spray gun, and other attachments designed to handle your washer’s PSI and GPM.