Quick verdict
Five quick connect nozzle tips at the 4.0 orifice size, colour coded 0, 15, 25, 40 degrees and a 65 degree soap nozzle, rated to 4,000 PSI, for a washer whose pressure and flow put it in the 4.0 orifice band on the sizing chart. Nozzle orifice is the number nobody reads: a tip too small over-pressures the pump and a tip too large drops the pressure at the surface. The chart in the listing matches PSI and GPM to the orifice, and that chart is the point of the product. Replace a worn or lost set with the right size and the washer performs as rated.
Strengths
- Correct orifice sizing restores rated pressure
- Five patterns including soap
- Colour coded and quick connect
- Rated 4,000 PSI
- Chart in the listing makes the size choice clear
Weaknesses
- Only right for washers in the 4.0 orifice band; check the chart
- Generic brass tips; the spray pattern is less crisp than OEM
- Zero degree tip is dangerous on wood and skin
The overall YardToolLab Score is out of 100. Section scores are out of 10.
The Number on the Nozzle Nobody Reads
Pressure washer nozzles are bought by colour and the colour is the spray angle, not the size. The size, the orifice, is what matches the tip to the pump, and a set bought at the wrong size either chokes the pump or wastes the pressure. MINGOU’s 5-pack is the full set of patterns at the 4.0 orifice, with a sizing chart in the listing that reads PSI and GPM across to the right number.
This review is based on the listing specifications and on how nozzle orifice sizing works on pressure washers generally. We have not used these tips ourselves and the brand is a generic importer.
Reading the Chart
Every washer has a PSI and a GPM on its label. The chart lists orifice sizes against those two numbers. A gas washer around 3,000 PSI at 2.5 GPM lands at 4.0; a smaller electric lands at 2.5 or 3.0; a big 4,000 PSI unit at 4 GPM lands at 5.0 or more. Buy the set at the number the chart gives, not the set that happens to be on the shelf.
What the Wrong Size Does
A tip too small is a restriction; the pump works against it, pressure spikes, the unloader bypasses and the pump runs hot in a job that should be easy. A tip too large passes the flow with less resistance and the pressure at the nozzle falls below the rating, so a washer that should strip a deck merely wets it. The right size is the rated pressure at the rated flow, which is what the washer was built to do.
The Five Tips
Forty degrees for siding, vehicles and wood. Twenty-five for concrete and patios. Fifteen for stubborn stains on hard surfaces only. Zero degrees is a cutting jet that damages wood, mortar and skin and is rarely the right tip. The 65 degree soap tip drops the pressure so the detergent siphon draws.
Build
Brass tips in plastic colour collars with a quick connect, rated to 4,000 PSI. The spray pattern is a shade less crisp than a brand nozzle; for home use the difference does not show on the drive.
Who Should Buy It
- Owners of washers in the 4.0 band replacing lost or worn tips.
- Anyone whose washer runs hot on the stock nozzles.
- People who have never checked the orifice and should.
Common Owner Complaints
Buying 4.0 for a 2,000 PSI electric. Read the chart first.
Alternatives to Consider
The same set at 3.0 or 5.0 for other washers. An adjustable multi-pattern nozzle for convenience. OEM nozzles for a crisper pattern.
Verdict
For a washer that performs as rated, the nozzle orifice has to match the pump, and this set makes the match easy for washers in the 4.0 band. Read the label, read the chart and leave the zero tip in the box.
Full specifications
MINGOU 4.0 Orifice Pressure Washer Nozzle Tips, 5-Pack, Colour Coded 0, 15, 25, 40 Degree and Soap, 1/4 Inch Quick Connect FAQs
The size of the hole in the tip, numbered on a scale where a larger number is a larger hole. The washer makes a certain flow; the orifice turns that flow into pressure. The right size gives the rated pressure; the wrong size gives too much or too little.
Find the washer PSI and GPM on its label and read across the chart in the listing. A 3,000 PSI washer at 2.5 GPM is near 4.0; a 2,000 PSI electric is smaller; a 4,000 PSI gas unit is larger.
Too small and the pump works against a restriction, runs hot and trips the unloader. Too large and the pressure at the surface drops and cleaning is poor.
Forty degrees for siding and wood, 25 for concrete, 15 for stains on hard surfaces, 0 almost never, and the soap tip to draw detergent.


