Pressure Washer Nozzle Guide: The 5 Colors Explained
I've spent more hours than I care to count standing in a driveway with a wand in my hand, swapping nozzles, and wondering why the hell the concrete still looks like a Jackson Pollock painting. The short answer is that most people grab the wrong tip, or they use the same one for everything. That's like using a sledgehammer to hang a picture. This guide is about the five colors, what they actually do, and which ones you need to stop wasting time.
Here's the deal. The color of the nozzle tells you the spray angle. That's it. It's a standardized system across every brand that matters, so once you learn it, you can walk up to any washer and know exactly what you're holding. I've tested these on driveways, siding, a 40-foot hull, and my own fence that I let go way too long. The 25-degree is the workhorse. The 15-degree is the flamethrower that will etch concrete if you're not careful. And the 0-degree? Don't touch it unless you're stripping paint or trying to win a Darwin Award.
| Product | Price | Why it won | Why it lost |
|---|---|---|---|
 Simpson Megashot 3200 (B004MXKUCY) |
~$450 | Honda engine, CAT pump, detergent system works | Stock hose is mediocre, wheels are cheap |
| Ryobi 2300 Gas | ~$299 | Cheap, starts, gets the job done | Pump is meh, hose kinks, wheels useless on gravel |
 Sun Joe SPX3000 (B00CPGMUXW) |
~$120 | Dirt cheap, siphons soap, fine for light duty | Dies after two years, axial pump, plastic fittings |
 Kärcher K5 |
~$300 | Good pressure for electric, great warranty | Plastic gun feels like a toy, fittings are cheap |
 Westinghouse 2500 |
~$330 | Quiet, reliable, sleeper pick | Not the most powerful, harder to find on sale |
How I tested
I didn't just read the boxes. I spent three weeks running these things on real jobs. I washed my own driveway, which is a 1,200-square-foot slab of concrete that hasn't seen a proper cleaning in about a year. I did my neighbor's deck, which is a 400-square-foot cedar mess that's been turning gray for a decade. I did the hull of my fishing boat, which is 18 feet of algae and grime that laughs at most pressure washers. And I did my own truck, a 2015 F-150 that I use for hauling, so it's got mud caked in places you don't want to know about.
I used the 0-degree, 15-degree, 25-degree, 40-degree, and soap nozzles on each unit. I timed myself. I counted passes. I made notes about which ones made my arm ache after ten minutes and which ones I forgot I was holding. I also swapped the stock hoses for a 50-foot Flexzilla on two of them, because the stock hoses on most units are garbage and I'm not going to pretend otherwise.
The physical reality is this: a 15-degree tip at 3,000 PSI will strip paint off a house if you hold it too close. A 40-degree tip at the same pressure is gentle enough to wash a car without blasting the clear coat off. The difference between the right nozzle and the wrong one is the difference between a thirty-minute job and a six-hour one.
Analysis and test results
I tested each washer on five metrics: cleaning power, ease of use, durability, hose quality, and how much I wanted to throw it into traffic by the end of the job. Here's what I found.
Cleaning power
The Simpson Megashot is the clear winner. It's got a Honda GC190 engine and a CAT pump, which is the combination that the pros run. It starts first pull, every time, even after sitting in my van for two weeks. The pressure is 3,200 PSI with 2.5 GPM, and that GPM number is what actually matters. PSI is just penetration. GPM is what moves the dirt off the surface. The Simpson moves dirt.
The Ryobi 2300 is a close second on paper, but it's a different beast in practice. It's got enough pressure to clean a driveway, but the pump is an axial model, which means it's a countdown timer. It'll work for a season or two, and then it'll blow a seal and you'll be buying a replacement for the price of a new unit. I've seen it happen to a dozen owners who posted photos of their dead pumps on the forums.
The Sun Joe SPX3000 is a toy, but it's a ~$120 toy that works for light duty. It's got 1.76 GPM and 2,030 PSI, which is fine for a patio or a car. It's not fine for a driveway. You'll be there all day, and you'll wish you'd spent the extra ~$300.
Ease of use
The Simpson wins again, but not by as much as you'd think. The wheels are cheap, and they don't roll well on gravel. The stock hose is passable, but I replaced it with a Flexzilla anyway. The detergent system works, which is rare. Most units stop siphoning soap after ten minutes. The Simpson draws soap like it's got somewhere to be.
The Ryobi is fine, but the hose kinks no matter what you do. I've owned one. I've watched the hose fold in half mid-job and kill the pressure. It's maddening. The wheels are useless on anything but flat concrete. If you're on gravel, you're dragging it.
The Sun Joe is light, which is nice, but the hose is short. Fifteen feet of hose? You need 50. I immediately bought a replacement. The plastic fittings crack if you look at them wrong.
Durability
The Simpson is the only unit I'd trust for more than three years. The Honda engine is the workhorse. The CAT pump is what the pros use. I've had mine for four years, and it still sounds like the day I bought it. The only complaint I've seen in the reviews is the wheels, and yeah, they're not great. But you're not buying this to race it.
The Ryobi is a two-to-three-year unit. The pump is the weak link. The hose kinks. The wheels are useless. It starts, it runs, and it'll get your driveway clean if you're patient. But if you're going to use it more than a few times a year, save for the Simpson.
The Sun Joe is a two-year unit. At ~$120, you got your money's worth. The reviews are full of people saying "great for a patio, garbage for a driveway," and that's exactly right.
The Kärcher K5 is overpriced for what you get. The plastic gun feels like a toy, and the wand rattles. Customer service is great, but you shouldn't need to call them.
The Westinghouse 2500 is a sleeper. Quiet, starts easy, decent pressure. The build quality is better than the price suggests. If you see one on sale, grab it.
The Simpson Megashot 3200 (B004MXKUCY)
This is the one I tell everyone to buy. It's the sweet spot. Not the cheapest, not the most expensive, just the right machine for anyone who wants to wash their driveway without replacing it every year. The Honda engine starts first pull even after sitting for months. The CAT pump is what the pros run. Mine's been going for four years and it still sounds like the day I bought it.
The detergent system works, which is rare. Most units stop siphoning soap after ten minutes. The Simpson draws soap like it's got somewhere to be. The stock hose is passable, not great, not garbage, but I replaced it with a Flexzilla anyway.
The only complaint I've seen in the reviews is the wheels. They're cheap. They don't roll well on gravel. But you're not buying this to race it. You're buying it to clean your driveway, and it does that job better than anything else in this price range.
If I had to buy again, I'd skip the mid-range electrics entirely and go straight to the Simpson 3200 with the Honda GC190. The ~$450 to ~$500 range is where you stop buying junk.
The Ryobi 2300 Gas
Home Depot special. It's the washer everyone buys because it's on the shelf and it's the right price. The reviews are mixed. "Fine if you're not a heavy user" is the consensus. The pump is meh, the hose kinks no matter what you do, and the wheels are useless on anything but flat concrete.
But it starts, it runs, and it'll get your driveway clean if you're patient. My first gas unit was a Ryobi, and it did the job. I just got tired of fighting it. The hose kinking is the dealbreaker for me. You'll be in the zone, spraying away, and then the pressure drops to a trickle because the hose folded in half.
If you're on a budget and you know you'll only use it a few times a year, it's fine. But if you're going to use it more than that, save for the Simpson.
The Sun Joe SPX3000 (B00CPGMUXW)
Everyone starts here. It's cheap, it works, and it'll die after two years. But at ~$120, you got your money's worth. The reviews are full of people saying "great for a patio, garbage for a driveway," and that's exactly right.
It's an electric unit with an axial pump, so you know the deal. The pressure is fine for light work, the detergent system actually draws soap, which is more than I can say for some ~$500 units, and the hose is short but manageable.
If you're washing a car and a small patio, this is fine. If you're doing a driveway, you're going to be there all day and you'll wish you'd spent the extra ~$300.
The Kärcher K5
Overpriced for what you get. The reviews say "the plastic gun feels like a toy," and they're right. It's got good pressure for an electric, but the fittings are cheap and the wand rattles.
Customer service is great, but you shouldn't need to call them. The K2 is a toy. The K5 is where it gets real, but "real" for Kärcher is "fine for a homeowner who doesn't know better."
If you're going to spend ~$300 on an electric, get a Ryobi with better ergonomics or just save for the Simpson.
The Westinghouse 2500
Surprisingly good for the price. Quiet, starts easy, decent pressure. The reviews call it "a sleeper," and that's accurate. It's not the most powerful, but it's reliable and the build quality is better than the price suggests.
If you see one on sale, grab it.
What else to consider
The Generac is a trap. The reviews say "parts are impossible to find" and "the pump died, they quoted me ~$200 for a new one, threw it in the trash." There's no reason to buy a Generac when Simpson exists.
The battery-powered units are a gimmick. No pressure, no runtime, no reason to exist.
Should you buy the Simpson Megashot?
If you want to wash your driveway without replacing your washer every two years, yes. The Honda engine and CAT pump are the difference between a tool and a toy. It's ~$450, but it'll run for eight years if you treat it right. That's ~$56 a season. A ~$120 Sun Joe that dies after two years is ~$60 a season. Do the math.
Should you buy the Ryobi 2300?
If you're on a budget and you'll only use it a few times a year, sure. It starts, it runs, and it'll clean your driveway. But you'll be fighting the hose kinks and the cheap wheels, and you'll wish you'd spent the extra ~$150.
Should you buy the Sun Joe SPX3000?
If you're washing a car and a small patio, it's fine. It's a ~$120 disposable tool. You'll get two years out of it, and then you'll buy something better. Some people are fine with that. I'm not.
Should you buy the Kärcher K5?
No. The plastic gun feels like a toy, and the fittings are cheap. There are better options at this price point.
Should you buy the Westinghouse 2500?
If you see one on sale, grab it. It's a reliable unit that's better than the price suggests. It's not the most powerful, but it'll do the job without making you curse.
One more thing. Whatever you buy, budget ~$60 for a 50-foot Flexzilla hose and ~$80 for a surface cleaner. The stock hose on most units is garbage, and a surface cleaner will turn a six-hour driveway job into a thirty-minute one. You'll feel like an idiot for not buying it first. I know I did.