Westinghouse WPX3000
#10 in GasFull review
A light, low cost washer for homeowners with occasional deck and car jobs. Buyers who use soap often should look at the WPX3400 with its built-in tank.
Amazon $299$299
3.2/5
A light, corrosion resistant Honda and triplex washer for small contractors and serious homeowners. It costs less than the CAT pump ALH3228 with more pressure and a longer hose.
- 3,600 PSIPressure
- 2.5 GPMFlow
- 35 ftHose
- 3 yearsWarranty
Check price at Amazon$701.99
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Aluminum frame resists corrosion on a trailer or truck bed
- 35 ft hose reaches further than the 25 ft hoses on most 2.5 GPM washers
- Honda engine and AAA triplex pump with 5 year pump coverage
Cons
- Costs well over twice a homeowner washer of similar output
- Amazon stock is limited
The Simpson Aluminum ALH family
Every Simpson Aluminum ALH model we rank, smallest first. Ratings compare each against its own power source.
| Model | Pressure | Rating | Price |
|---|---|---|---|
| Simpson Aluminum 3400 PSI | 3,400 PSI | 2.7/5 | $832.90 |
| Simpson Aluminum 3600 PSI (this one) | 3,600 PSI | 3.2/5 | $701.99 |
| Simpson Aluminum 4200 PSI | 4,200 PSI | 3.4/5 | $1,397 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its power source. How we rank explains each one.
Specifications
| Model number | ALH3425-S |
|---|---|
| Cleaning | |
| Pressure | 3,600 PSI |
| Flow | 2.5 GPM |
| Cleaning units | 9,000 |
| Nozzles included | 5 |
| Power | |
| Power | Gas |
| Engine or motor | 196 cc (Honda GX200) |
| Pump | Triplex plunger |
| CARB compliant | No |
| Build | |
| Hose | 35 ft |
| Weight | 78 lb |
| Warranty | 3 years |
Alternatives in this power source
Simpson Clean Machine 3400 PSI
#11 in GasFull review
A compact, ready to run washer for homeowners who want 3400 PSI without a pro price. The short pump warranty is the trade off.
Amazon $359$359
Simpson Clean Machine 3200 PSI
#13 in GasFull review
A light, well equipped homeowner washer for decks, siding and cars. The soap tank and turbo nozzle make it the better buy than the 2900 PSI Clean Machine.
Amazon $329$329
Compare
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