Karcher K3 Power Control
#4 in ElectricFull review
A light, easy to control washer for cars, bikes and patios with a pressure display on the gun. A good pick for apartment and small home owners.
Amazon $175.99 Karcher $139.99$139.99
The Karcher K3 Power Control and the Westinghouse ePX3100 are evenly matched, rated 3.5 and 3.4. The Karcher K3 Power Control leads on cleaning power. The Westinghouse ePX3100 wins on warranty.
Westinghouse ePX3100
#6 in ElectricFull review
A cheap, compact washer for cars, patio furniture and decks, with a longer warranty than most at this price.
Amazon $139$139
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 Karcher K3 Power Control for cleaning power (2,610 cleaning units (1,800 PSI x 1.4 GPM) vs 2,356 cleaning units (1,900 PSI x 1.2 GPM)).
- Choose the Westinghouse ePX3100 for warranty (3-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every electric pressure washer; a clear win is highlighted. How we rank explains each one.
| Factor weight | Karcher K3 Power Control | Westinghouse ePX3100 |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 35% | 86 $53.64 per 1,000 cleaning units ($139.99, 2,610) | 79 $59 per 1,000 cleaning units ($139, 2,356) |
| Cleaning power 30% | 54 2,610 cleaning units (1,800 PSI x 1.4 GPM) | 37 2,356 cleaning units (1,900 PSI x 1.2 GPM) |
| Hose 10% | 33 25 ft hose | 33 25 ft hose |
| Warranty 25% | 25 2-year warranty | 50 3-year warranty |
Specifications
| Karcher K3 Power Control | Westinghouse ePX3100 | |
|---|---|---|
| Cleaning | ||
| Pressure | 1,800 PSI | 1,900 PSI |
| Flow | 1.4 GPM | 1.2 GPM |
| Cleaning units | 2,610 | 2,356 |
| Nozzles included | 2 | 5 |
| Detergent | Onboard tank | Onboard tank |
| Power | ||
| Power | Electric | Electric |
| Total stop | - | Yes |
| Build | ||
| Hose | 25 ft | 25 ft |
| Weight | 12.1 lb | 19 lb |
| Warranty | 2 years | 3 years |