Rated PSI

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Pressure washer nozzle colors, and what each one is for

Updated

The common code is red for 0 degrees, yellow for 15, green for 25, white for 40 and black for soap. Generac's help center uses exactly those colors. But colors are not a fixed standard: one Sun Joe model guide we read lists its 0 degree tip as orange and its 40 degree tip as gray. Go by the degree number stamped on the tip.

The chart

Common colorAngleWhat it doesGood for
Red0 degreeA single pinpoint jet, the most force on the smallest spotStuck-on gunk on metal or masonry. Rarely needed at home
Yellow15 degreeA narrow fan with high forceConcrete, garage floors, brick, stripping loose paint
Green25 degreeA medium fan, the everyday tipSiding, decks, fences, patios, outdoor furniture
White40 degreeA wide fan with the least forceCars, windows, boats, anything easy to damage
BlackSoapA wide, low pressure spray that pulls in detergentLaying down soap before you rinse

The uses above follow Generac's list. Turbo or rotary nozzles are separate: they spin a narrow jet in a circle and are for concrete and brick.

How much the angle changes the force

Water from the same machine spreads over a wider strip as the angle opens up. At the same distance, a 40 degree tip spreads the jet across a strip about 2.8 times wider than a 15 degree tip, so each square inch gets hit far less hard. That is why the tip matters more than the PSI for damage.

Which colors come with our picks

If a set is missing the tip you want, quick-connect tips are sold on their own. Match the fitting size to your wand, and check that the tip is rated for your machine's PSI and GPM.

For surface by surface advice, see our nozzle guide. Check any listing's numbers with the cleaning units calculator, or see all five machines on our picks page.

Never test a tip on your hand. The 0 degree jet in particular can inject water under the skin, an injury that needs a doctor right away.