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 is the better pressure washer overall, rated 3.5 to 2.1. The Karcher K3 Power Control leads on value, cleaning power and hose. The Karcher K3 Power Control costs $109.01 less ($139.99 vs $249).
Sun Joe SPX4004-MAX
#22 in ElectricFull review
A sturdy roll cage washer with two pressure settings and a big soap tank. Most buyers get more cleaning power for less from other brands.
Sun Joe $249$249
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 value ($53.64 per 1,000 cleaning units ($139.99, 2,610) vs $125.76 per 1,000 cleaning units ($249, 1,980)), cleaning power (2,610 cleaning units (1,800 PSI x 1.4 GPM) vs 1,980 cleaning units (1,800 PSI x 1.1 GPM)) and hose (25 ft hose vs 20 ft hose).
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 | Sun Joe SPX4004-MAX |
|---|---|---|
| Overall rating | 3.5/5 | 2.1/5 |
| Value 35% | 86 $53.64 per 1,000 cleaning units ($139.99, 2,610) | 19 $125.76 per 1,000 cleaning units ($249, 1,980) |
| Cleaning power 30% | 54 2,610 cleaning units (1,800 PSI x 1.4 GPM) | 12 1,980 cleaning units (1,800 PSI x 1.1 GPM) |
| Hose 10% | 33 25 ft hose | 0 20 ft hose |
| Warranty 25% | 25 2-year warranty | 25 2-year warranty |
Specifications
| Karcher K3 Power Control | Sun Joe SPX4004-MAX | |
|---|---|---|
| Cleaning | ||
| Pressure | 1,800 PSI | 1,800 PSI |
| Flow | 1.4 GPM | 1.1 GPM |
| Cleaning units | 2,610 | 1,980 |
| Nozzles included | 2 | 5 |
| Detergent | Onboard tank | Onboard tank |
| Power | ||
| Power | Electric | Electric |
| Engine or motor | - | 13 A |
| Total stop | - | Yes |
| Build | ||
| Hose | 25 ft | 20 ft |
| Power cord | - | 35 ft |
| Weight | 12.1 lb | 26.5 lb |
| Warranty | 2 years | 2 years |