Simpson PowerShot 4400 PSI
#1 in GasFull review
The best value contractor washer here: 4400 PSI at 4 GPM with pro pump coverage for less than the Honda powered models. Too much machine for occasional home use.
Amazon $899.99$899.99
4.0/5
For big properties and frequent users who want near contractor flow for less than a Honda powered Simpson.
- 3,800 PSIPressure
- 3.6 GPMFlow
- 35 ftHose
- 3 yearsWarranty
Check price at Amazon$737.63
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 3.6 GPM flow rinses large areas much faster than 2.5 GPM washers
- Triplex pump, 35 ft hose and soap tank in one package
- 3 year residential warranty on the whole washer
Cons
- No low oil shutdown
- At 91 lb it is hard for one person to lift
The Westinghouse WPX family
Every Westinghouse WPX model we rank, smallest first. Ratings compare each against its own power source.
| Model | Pressure | Rating | Price |
|---|---|---|---|
| Westinghouse WPX2700 | 2,700 PSI | 3.1/5 | $293.02 |
| Westinghouse WPX3000 | 3,000 PSI | 3.3/5 | $299 |
| Westinghouse WPX3400 | 3,400 PSI | 3.8/5 | $349 |
| Westinghouse WPX3600 | 3,600 PSI | 3.8/5 | $529 |
| Westinghouse WPX3800 (this one) | 3,800 PSI | 4.0/5 | $737.63 |
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 | WPX3800 |
|---|---|
| Cleaning | |
| Pressure | 3,800 PSI |
| Flow | 3.6 GPM |
| Cleaning units | 13,680 |
| Nozzles included | 5 |
| Detergent | Onboard tank |
| Power | |
| Power | Gas |
| Engine or motor | 274 cc (Westinghouse OHV) |
| Pump | Triplex plunger |
| CARB compliant | No |
| Build | |
| Hose | 35 ft |
| Weight | 91 lb |
| Warranty | 3 years |
Alternatives in this power source
WEN PW224G
#2 in GasFull review
A budget washer with good flow and a 3 year warranty for homeowners cleaning driveways and siding.
Amazon $309.07$309.07
Simpson PowerShot 4000 PSI
#4 in GasFull review
A contractor grade washer for people who clean large areas often. Its flow and hose make big jobs much quicker than a homeowner unit.
Amazon $829.94$829.94
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