Nozzles & Hoses

The colored tips are the whole tool

A pressure washer does not have a power setting. The nozzle is the setting. Swapping a red tip for a white one changes what the machine does more than any difference between two machines in the same price band. This is the single most useful thing to learn, it takes about a minute, and most people never do it — which is why so many driveways have stripes in them and so much siding has a wavy pattern across it.

The industry color code is consistent: red is 0 degrees (a pencil jet, almost always the wrong choice), yellow 15, green 25, white 40, and black is the low-pressure soap tip. Wider angle means lower force but more coverage. Nearly every homeowner job is green or white. The full chart, with what each one is actually for, is in the nozzle colors guide — the most-linked page on this site, for good reason.

Why the fittings are so confusing

There are two standards in a homeowner garage and they are not interchangeable without an adapter. M22 threaded fittings screw together and are what most machine outlets and hoses use. 1/4-inch quick connect is a push-and-click coupler, and is what almost every accessory uses. To make matters worse, M22 comes in two internal sizes, 14mm and 15mm, that look identical and do not seal against each other.

The practical answer is to convert everything to quick connect once, with a cheap adapter set, and then never think about it again. That is what the quick connect guide is for. It is also why so many accessory reviews contain a one-star review that just says “does not fit” — it fitted fine, it needed a two-dollar adapter.

Hose length is a real decision

Stock hoses are usually 20 to 25 feet, which means you spend the job moving the machine instead of moving the gun. Fifty feet costs very little and changes how the tool feels to use: one tap position covers most of a house. The trade is a small pressure loss over the extra length, and a hose that is more awkward to coil and store.

Material matters more than people expect. A cheap PVC hose goes stiff below about 50 degrees and fights you all morning. A rubber or hybrid hose stays flexible. If you will ever wash in spring or autumn, pay the small premium. How to choose a pressure washer hose goes through length, diameter, rating and fitting type in order.

What to buy, and in what order

If you are starting from a bare machine: a full color nozzle set first, because it is a few dollars and transforms what the tool can do safely. Then a longer hose. Then a turbo nozzle if you have concrete, or an extension wand if you have a two-story wall. A replacement gun comes later, when the stock one starts weeping at the trigger, which it will.

Two things to buy before you need them: a swivel connector, which stops the hose twisting itself into loops behind you, and an inlet water filter, because grit from the supply is a common way pumps die. Both are cheap, both are in the accessories kit page.

Where to go next

Everything here bolts onto a machine, so if you have not chosen one yet, start at the pressure washers hub. And the black soap tip in your nozzle set is useless without something to put through it, which is the soaps and detergents hub.