Karcher K4 Compact review
Test score %
The £150 Karcher K4 Compact pressure washer is one of the only cylinder-style pressure washers in the Karcher range and offers a powerful, water-cooled motor in a fairly compact unit. Is it as easy to use as a trolley-style Karcher? We sent it to our test lab to find out.
- Pros and cons
- What is it?
- What's it great at?
- Is there anything I should watch out for?
- Is there anything else I should know?
- Which? first look verdict
Make smarter choices
- 53%Lowest score
- 72%Average score
- 84%Highest score
How to buy the best pressure washer
Whether you want a pressure washer for cleaning the car, decking or patio, our experts can help you decide which pressure washer to buy and how much to spend. We also explain the different accessories and whether you need them.
Pressure washer features explained
When it comes to choosing a pressure washer, the difference between models and prices comes down to which accessories you want. The Which? experts explain what all the accessories do to help you decide which ones you really need.
Which pressure washer brand?
Which brand of pressure washer should you buy? Which? has tested best-selling pressure washers from Bosch, Nilfisk and Karcher to help you decide.