Simpson Aluminum 3600 PSI
#12 in GasFull review
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.
Amazon $701.99$701.99
The Simpson Aluminum 3600 PSI is the better pressure washer overall, rated 3.2 to 2.8. The Simpson Aluminum 3600 PSI leads on hose and warranty. The Simpson PowerShot 3500 PSI wins on value. The Simpson PowerShot 3500 PSI costs $83.99 less ($618 vs $701.99).
Simpson PowerShot 3500 PSI
#17 in GasFull review
A Honda powered washer for frequent home use at a lower price than the PS3228. Buyers who want the 5 year triplex pump coverage should pick the PS3228.
Amazon $618$618
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Simpson Aluminum 3600 PSI for hose (35 ft hose vs 25 ft hose) and warranty (3-year warranty vs 2-year warranty).
- Choose the Simpson PowerShot 3500 PSI for value ($70.63 per 1,000 cleaning units ($618, 8,750) vs $78 per 1,000 cleaning units ($701.99, 9,000)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every gas pressure washer; a clear win is highlighted. How we rank explains each one.
| Factor weight | Simpson Aluminum 3600 PSI | Simpson PowerShot 3500 PSI |
|---|---|---|
| Overall rating | 3.2/5 | 2.8/5 |
| Value 35% | 15 $78 per 1,000 cleaning units ($701.99, 9,000) | 26 $70.63 per 1,000 cleaning units ($618, 8,750) |
| Cleaning power 30% | 67 9,000 cleaning units (3,600 PSI x 2.5 GPM) | 62 8,750 cleaning units (3,500 PSI x 2.5 GPM) |
| Hose 10% | 100 35 ft hose | 33 25 ft hose |
| Warranty 25% | 50 3-year warranty | 25 2-year warranty |
Specifications
| Simpson Aluminum 3600 PSI | Simpson PowerShot 3500 PSI | |
|---|---|---|
| Cleaning | ||
| Pressure | 3,600 PSI | 3,500 PSI |
| Flow | 2.5 GPM | 2.5 GPM |
| Cleaning units | 9,000 | 8,750 |
| Nozzles included | 5 | 5 |
| Power | ||
| Power | Gas | Gas |
| Engine or motor | 196 cc (Honda GX200) | 196 cc (Honda GX200) |
| Pump | Triplex plunger | Triplex plunger |
| CARB compliant | No | No |
| Build | ||
| Hose | 35 ft | 25 ft |
| Weight | 78 lb | 74 lb |
| Warranty | 3 years | 2 years |