Karcher K4 Compact Review

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The Karcher K4 Compact is a high performing mid-range pressure washer from a well known brand. Although it’s not the cheapest on the market, it does punch well above its weight and can easily compete with more expensive models from other brands.

Karcher K4 – What’s in the Box?

In addition to the Karcher K4 Compact pressure washer itself the K4 ships with the following included equipment:

  • High-pressure gun with Standard Quick Connect
  • Vario Power spray lance
  • Dirt Blaster spray lance
  • 6m High-pressure hose

The included Vario power spray lance allows you to vary the output power of the washer increasing or decreasing cleaning power depending on the application.

The dirt buster lance allows you to concentrate the jet on a much smaller area (with up to a 50% power increase) cutting through dirt with ease.

Performance

One of the standout features of the Karcher K4 is the included Vario lance. This specially designed pressure washer lance allows you to vary the power output on the fly between 20 and 130 bar. This means you can use a lower power setting to rinse off the car, then up the power and really blast the patio in a single session.

Like other members of the Karcher K range, the K4 has the options of being fed either from a standard ¾ inch hose connection (included as part of the kit) or via a gravity fed system, such as a waterbutt. This added flexibility is great especially if your home is subject to hosepipe bans or you are in a water meter area.

The K4 is ideal for medium sized cleaning jobs around the home and garden, with its 420 litres per hour maximum throughput and 30 meter per hour coverage it’s sure to make light work of most tasks. Power is provided by an advanced 1.8Kw motor.

The Karcher K4’s motor is a specially designed water cooled unit which allows for longer run times and ultimately improves the longevity of the pressure washer. However that extra run time and unit life does come at a cost.

Karcher K4 Compact
Kärcher K4 Compact Pressure Washer
  • Water-cooled motor for improved performance and a longer life
  • Quick connect system for the high-pressure hose. The high-quality aluminium telescopic handle can be adjusted to a convenient height for transporting, and then easily retracted again for storage. The small, robust devices in the Compact range have two carrying handles and can easily be taken with you, wherever you go
  • Detergent suction tube for the application of detergents
  • Lance, trigger gun and cable storage. Current type (V) - 230
  • Draws water from a static water source, e.g. water butt, pond or bucket (Suction hose and filter to be purchased additionally)

Last update on 2024-12-12 / Images from Amazon Product Advertising API / As an Amazon Associate I earn from qualifying purchases

Ergonomics

At a little over 4kg, the Karcher K4 is a fairly lightweight unit for its size. The integrated carry handle makes moving the unit east, the weight is well balanced so it’s comfortable to hold for long durations.

A nice bonus is all of the included equipment can be stored on the device itself, everything has a home. This is in stark contrast to some of the cheaper branded equipment where you’ll need to keep a bag or a box for all the addons you get.

This means that transport and storage of the pressure washer is easy and it’ll be a lot harder to lose any the important bits and pieces between uses.

Value

The Karcher K4 Compact does really give you a lot of pressure washer for your money. In addition to the K4 itself, you get all the extra bits that you’ll need to get the majority of your cleaning tasks done.

Karcher’s range of additional accessories is large and often competitively priced, so it’s a good system to get into.

The Karcher K4 Compact also comes with a 3 year guarantee as standard, further protecting your purchase.

Manufacturers Information

Included Equipment

  • High-pressure gun, Standard Quick Connect
  • Vario Power spray lance
  • Dirt Blaster spray lance
  • High-pressure hose, 6 m
  • Quick Connect on machine
  • Detergent application via, Suction
  • Telescopic handle
  • Water-cooled motor
  • Integrated water filter
  • Adapter garden hose 3/4″

Technical Data

  • Pressure (bar/MPa) 20 – up to 130 / 2 – up to 13
  • Flow rate (l/h) max. 420
  • Max. water feed temperature (°C) max. 40
  • Current type (V/Hz) 230 / 50
  • Power rating (kW) 1.8
  • Area performance (m²/h) 30
  • Weight without accessories (kg) 10.7
  • Dimensions (L x W x H) (mm) 516 x 295 x 282

Gallery

Kärcher K4 Compact Pressure Washer
  • Water-cooled motor for improved performance and a longer life
  • Quick connect system for the high-pressure hose. The high-quality aluminium telescopic handle can be adjusted to a convenient height for transporting, and then easily retracted again for storage. The small, robust devices in the Compact range have two carrying handles and can easily be taken with you, wherever you go
  • Detergent suction tube for the application of detergents
  • Lance, trigger gun and cable storage. Current type (V) - 230
  • Draws water from a static water source, e.g. water butt, pond or bucket (Suction hose and filter to be purchased additionally)

Last update on 2024-12-12 / Images from Amazon Product Advertising API / As an Amazon Associate I earn from qualifying purchases

Ratings

Karcher K4 Compact Pressure Washer Review
  • Performance
  • Ergonomics
  • Flexibility
  • Value
3.8

Summary

The Karcher K4 Compact is a high performing mid-range pressure washer from a well known brand. Although it’s not the cheapest on the market, it does punch well above its weight and can easily compete with more expensive models from other brands.

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About Francesca Fitton 108 Articles
I have a passion for gardening and being outdoors. I blog about plant care, technology and tools that I love to use outside and invite you along to watch.

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