Karcher Pressure Washer Review

karcher pressure washer

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Many jobs around the house or shop need pressure washing to remove grime and mildew. Pressure washing equipment does the work that would take hours by hand and still might not come clean. The results of pressure washing are dramatic. The equipment that provides this function varies from small machines that could be handled by almost anyone to heavy-duty commercial grade equipment. There is a Karcher pressure washer for almost every size job. This is a company that produces a full line of equipment including the Karcher K2 Plus Electric Power Pressure Washer.

Comparison Table

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What Is the K2 Karcher Pressure Washer?

The Karcher K2 Plus Electric Power Pressure Washer is part of the top-selling line of Karcher pressure washers. This electric model is compact. Weighing only 16.8 pounds, it is light enough for almost anyone to use and powerful enough to tackle many indoor and outdoor cleaning projects. Its tall fixed handle and lightweight design make it easy to use and to transport.

Consumer reviews of this model range from very satisfied users who have had this machine working well for several years to low scores for poor performance. This machine comes with such an excellent warranty that we can only assume the complainers did not follow up with the company to get their problems resolved.

Product Specs

The spray hose is 20 feet long. This Karcher pressure washer has a Vario Power Spray wand that lets the user adjust the spray from low pressure to high pressure right at the nozzle. Its N-COR pump is non-corrosive and maintenance-free. The electric cord is 35 feet long, providing a good range for this washer. It has a detergent siphon to make cleaning up and storing the machine an easy task.

How It Compares

We picked a few similar products available on the market to see how they compare. One is an economically priced electric model somewhat larger than the Karcher. The other two are more heavy-duty gas-powered pressure washers.

  • Simpson Cleaning MSH3125-S 3100
  • Sun Joe SPX3000
  • Generac 7019

Karcher K2 Plus Electric Power Pressure Washer

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  • Lightweight, compact pressure washer
  • Reasonably priced
  • Excellent warranty and replacement policy


  • Doesn’t have the power of larger pressure washers

Simpson Cleaning MSH3125-S 3100 Gas Pressure Washer

[amazon box=”B004MXKUCY”]


The Simpson MSH3125 Gas Pressure Washer is a heavy-duty machine intended for home and shop use. Part of the Simpson MegaShot Series, it is powered by a Honda engine. This machine is designed to provide maximum performance at a minimum investment. This pressure washer operates at 3200 PSI at 2.5 GPM, powerful enough for cleaning decks, driveways, siding and for prepping for painting.


  • Factory tested before shipping
  • Powerful Honda engine
  • 10-inch pneumatic tires for excellent traction


  • More expensive for at-home use than the smaller models

Sun Joe SPX3000

[amazon box=”B00CPGMUXW”]


The Sun Joe SPX3000 is a small, very reasonably priced electric pressure washer, suitable for most household tasks. Its 1800 Watt/14.5 amp motor generates up to 2030 PSI and 1.76 GPM for maximum cleaning power.


  • A powerful small machine at a reasonable price
  • Dual tank system for detergents
  • Five easy-to-change nozzle options


Generac 7019 OneWash 3,100 PSI, 2.4 GPM, Gas Powered Pressure Washer

[amazon box=”B01FSJ8GZ8″]


The Generac 7019 Gas Powered Pressure Washer is a powerful gas-powered machine designed to deliver maximum cleaning performance. Its ergonomic spray gun with Power Dial feature enables the user to adjust the pressure needed for varying tasks from car washing to concrete. Its horizontal axial cam pump produces 3100 PSI for the most challenging stains. This machine can clean everything from outdoor furniture to decks, driveways, and siding.


  • Powerful gas-powered engine
  • Easy-to-connect hoses
  • Nozzle options
  • Detergent container onboard


  • At 57 pounds, this machine is heavy to transport
  • More than twice the price of the Sun Joe model and almost five times the price of the Karcher model


Our selection of pressure washers demonstrates the range of options available in the market. Nearly every home or business has occasional needs for pressure-washing services. Many of these projects can easily be done with a pressure washer designed for residential use. It’s tempting to think bigger and more powerful are best, but it’s also important to consider the kinds of jobs you will tackle with a pressure washer. For roof jobs and paint preparation on large homes or buildings, you may want to hire a professional who will come with professional grade equipment, appropriate ladders, and insurance.

Choose the Right Size Pressure Washer for Your Projects

In areas where sidewalks, patios and outdoor furniture get grimy, a home power washer will be a very handy tool to help keep things looking good and without the cost of hiring somebody to do the work.

Often, it is wise to spend a little more to purchase an upgrade from the product you are looking at, even though it may be more than you need at the time. With power washers, it is a good idea to make an assessment of the kinds of projects you will do yourself with your own pressure washer and then choose the model that will be easiest to use to accomplish those tasks. This may not always be a bigger or more powerful machine.

For those who prefer to take matters into their own hands and tackle the big projects like cleaning the siding or preparing wood siding for paint, the two gas-powered pressure washers, the Simpson and the Generac models, are heavy-duty models designed to handle these major household projects and all the smaller projects that come up around a house.


Small Can Be Good

The Karcher K2 Pressure Washer may be the ideal way to find out if you want a bigger model some day. This small, very affordable and very manageable pressure washer, is capable of many of the smaller cleaning projects like vehicles, boats, lawn and patio furniture.

Once you have a taste of the power of a pressure washer, you may be tempted to take on more. There is an almost addictive lure once you discover how fast a pressure washer gets rid of dirt and mildew, leaving things looking clean and sparkling. One very attractive advantage of the Karcher 2 is that with its small size and a weight of 16.8 pounds, taking it out and using it is almost as easy as getting out the vacuum.

At almost twice the price but still a very affordable machine, the Sun Joe is a small electric machine with many of the advantages of small size that the Karcher pressure washer offers, but with more features and options. Both the Simpson and the Generac gas-powered models offer excellent power and strong features. If you plan to do the big pressure washing projects, one of these machines will do the job. If your plans for a pressure washer fall more into the category of everyday cleaning, then hauling out one of these larger machines, making sure you have gas, and getting it set up, may not be as appealing.

All four models have their place. The two gas-powered models are good choices for those bigger jobs, and the Sun Joe may appeal to people.

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