The nozzle is one of the smallest components on a pressure washer and one of the most consequential. Swap it out, and you change the spray angle, the pressure at the surface and what the machine is suitable for. Use the wrong one and you either won’t clean effectively or you’ll damage the surface you’re working on.
Knowing which pressure washer nozzle you should get is easy once you know the system.
Quick Summary
- Pressure washer nozzles are colour-coded by spray angle. Narrower angles concentrate pressure for tough surfaces; wider angles reduce pressure for general or more delicate cleaning
- The best pressure washer nozzle for most commercial and industrial general cleaning is the 25-degree green nozzle
- Turbo nozzles combine narrow-angle pressure with wider coverage and are well-suited to heavy equipment washdowns
- Worn nozzles affect cleaning performance and put unnecessary strain on the pump
- Replacement nozzles and parts are available through Jasman’s parts and accessories range
The Colour Code System
Most nozzle sets follow a standardised colour system based on spray angle. The angle determines how concentrated the water stream is at the surface, which directly affects cleaning power and the risk of surface damage.
| Colour |
Angle |
Best for |
| Red |
0° |
Pinpoint blasting on very hard surfaces. Use with care. |
| Yellow |
15° |
Heavy-duty stripping, compacted grime and concrete cleaning |
| Green |
25° |
General commercial cleaning, equipment washdowns, hard surfaces |
| White |
40° |
Vehicles, painted surfaces, softer materials, wider area coverage |
| Black |
65° |
Applying detergent at low pressure before rinsing |
The red 0-degree nozzle concentrates the full machine pressure into a single point. On the right surface and at the correct standoff distance, it’s a useful tool. On paint, coatings or softer materials, it causes damage quickly.
Matching the Nozzle to the Job
For commercial and industrial applications across WA, nozzle selection in practice typically looks like this.
Heavy equipment and mine site washdowns
The yellow (15°) or green (25°) nozzle handles most of this work well, depending on how compacted the contamination is and the surface type. A turbo nozzle is worth considering for heavily soiled equipment where efficient coverage across a large area matters.
Vehicle and fleet washing
The green (25°) nozzle for body panels and undercarriages with general grime. The white (40°) nozzle for painted or more delicate surfaces where reducing pressure at contact points matters.
Concrete floors and hard surfaces
Yellow (15°) for compacted or stained concrete where maximum force is needed. Green (25°) for regular maintenance cleaning where a full-pressure concentrated stream isn’t necessary.
Chemical and detergent application
Always use the black soap nozzle for applying detergent. It significantly reduces pressure and allows the chemical to coat the surface properly before rinsing. Applying detergent through a narrow nozzle wastes product and doesn’t give it time to work.
Turbo Nozzles
Turbo or rotary nozzles spin a concentrated stream in a circular motion, combining narrow-angle pressure with wider spray coverage. For commercial and industrial applications where large areas of heavy soiling need to be cleared efficiently, a turbo nozzle cuts job time significantly compared to a standard fixed tip.
They’re particularly well-suited to mine site equipment washdowns, heavily soiled vehicles and industrial floor cleaning. The same principle applies as with any nozzle, though: match it to the surface. A turbo nozzle carries more risk on coated or sensitive surfaces than a standard 25° or 40° tip.
When to Replace a Nozzle
Nozzles wear over time. The orifice gradually erodes, which changes the spray pattern and effective pressure at the surface. Signs a nozzle is due for replacement include an uneven or distorted spray pattern, reduced cleaning performance at the same pressure setting and visible wear to the tip.
Continuing to run a worn nozzle puts unnecessary strain on the pump across your
pressure washers and
pressure cleaners.
It’s worth checking nozzle condition during your next
pressure washer servicing visit. Replacement nozzles and fittings are available from Jasman’s parts and accessories range, and most are inexpensive to replace.
Shop the Best Pressure Washer Nozzles and Accessories from Jasman
Jasman stocks replacement nozzles and a range of parts and accessories for commercial and industrial pressure cleaners in Perth. If you’re not sure which nozzle suits your machine or you’re looking for
pressure cleaner repairs, we can help.
Call us on (08) 9355 0355 or fill in our contact form.
FAQs
Which pressure washer nozzle should I get for general commercial cleaning?
The green 25-degree nozzle is the most versatile and the best pressure cleaner nozzle for most commercial and industrial general use. It delivers a practical combination of pressure and coverage for equipment washdowns, hard surfaces and general cleaning without the damage risk of a narrower angle.
Which pressure cleaner nozzle should I get for vehicles?
The white 40-degree nozzle is the safer choice for painted vehicle surfaces. For undercarriages or heavily soiled areas where paint isn’t a concern, the green 25-degree nozzle works well. Avoid narrow-angle nozzles on any coated or painted surface.
Can the wrong nozzle damage my pressure washer?
Using a nozzle that’s too narrow for the application increases back pressure on the pump, which accelerates internal wear over time. If a narrow nozzle has been in regular use, it’s worth having the pump assessed during your next pressure cleaner repairs or servicing visit to catch any wear early.
