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Kärcher K1900 Spec Review

The Kärcher K1900 is an electric pressure washer offering a maximum water pressure of 1900 PSI and flow of 1.3 GPM. (Read full specs)

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Description

The K1900 was developed to offer premium cleaning performance and unparalleled ease of use. This electric pressure washer delivers 1900 PSI of TruPressure™ cleaning power, ensuring you get the highest level of cleaning performance and driven by a rugged induction motor. It includes convenience features such as a unique on/off foot switch, a handy storage bin, large one-gallon removable detergent tank and four spray nozzles (including a turbo nozzle for intense cleaning). It is perfect for tackling those deep cleaning jobs. (source: Kärcher (opens in a new tab))

Zoom on the Kärcher K1900

In a nutshell, the Kärcher K1900 is a light to medium duty pressure washer that allows:

  • intense cleaning of hard, unpainted surfaces
  • cleaning of painted and frail surfaces
  • application of detergent and cleaning solutions

The following sections will present you in detail its power characteristics and design, its main features and all the additional features it has to offer.

Power

The Kärcher K1900 in use

The Kärcher K1900

The Kärcher K1900's axial pump, powered by a 13 amp induction motor, can provide a pressure of up to 1900 PSI (approximately 32 times more than a standard garden hose) and a flow of up to 1.3 GPM (values claimed by the manufacturer). The Kärcher K1900 thus has a cleaning power of 2470 Cleaning Units.

Kärcher allows you to easily start this electric pressure washer, utilizing the K1900's ON/OFF pedal. The unit is ready-to-use with peace of mind, thanks to the included 35 ft GFCI cord.

Design & Handling

Thanks to its hand truck design and approximate dimensions of D18.3 x W19 x H35.5 in, the Kärcher K1900 offers great mobility. The aluminum frame grants the device a good durability, as it will not rust. The folding handle enhances its mobility, while allowing for a convenient storage.

With a weight of only 39.3 lbs, the unit is definitely easy to carry around. Its aluminum frame certainly plays a key role in this light weight. To further improve its transportability and ease of use, the unit also features a set of two 10" wheels.

Main Features

The Kärcher K1900 comes with a spray gun, a wand, a pressure hose, 4 nozzles and a detergent injection feature, which are detailed below.

  • Soap injection: A safe detergent storage is facilitated by a removable 1 gal tank. However, since the Kärcher K1900 does not feature a soap dilution mechanism, you'll have to make sure your detergent is correctly diluted before use. When a soap nozzle is connected, the detergent will be added automatically to the water.
  • Pressure hose: The included 25 ft high-pressure hose can be neatly stored on the unit when idle thanks to a set of convenient hooks.
  • Spray gun and wand: A front sheath enables you to easily store the included classic ergonomic spray gun and its wand.
  • Nozzles: The following table illustrates the 4 included nozzles, along with the surfaces which they are the most suitable for.
 

15°

40°

Soap

Turbo
Concrete, brick, masonrySuitableSuitableSuitableUse with caution
Siding, gutters, houseUse with cautionSuitableSuitableNot recommended
Fencing, deck, patioUse with cautionSuitableSuitableNot recommended
Lawn equipment, boat, RVUse with cautionUse with cautionSuitableNot recommended

Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.

Other Features

The nozzles of the Kärcher K1900

The Kärcher K1900 nozzles

  • Onboard storage: With the Kärcher K1900's handy storage area, you’ll always have all the necessary nozzles and accessories at hand and thus, you’ll be fully prepared for any job.
  • Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation).
  • Accessories: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the Kärcher K1900 comes with power cord, pressure hose, wand and spray gun.

Product Videos

The Kärcher K1900's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Kärcher K1900 compare to similarly priced pressure washers.

  • The Karcher K1900, which can achieve a PSI of up to 1900, falls behind the other electric pressure washers in the $195 to $255 price range. If you're going after the highest possible power of the water stream, one of the best in this price range is the Sun Joe SPX4600 that can reach up to 3000 PSI.
  • When compared to devices in the above-mentioned price range, this washer and its 1.3 GPM (gallons per minute), is on the lower end of the achievable water flow. In case you are looking for a device which can most efficiently rinse away debris in the current price range, the Realm BY02-BIMK has the highest GPM of 1.75.
  • The K1900 ranks as below average in terms of Cleaning Units, compared to electric devices in its price range, reaching only a value of 2470 CU (PSI x GPM). If you are after the highest overall cleaning power, the Realm BY02-BIMK with its 4550 Cleaning Units is one of the products that can achieve the highest cleaning efficiency in this price range.

Price comparison

As you can see from this interactive chart, when compared to other electric washers between 2000 and 2500 Cleaning Units, the Karcher K1900 is on the average side of the price range.

Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.

The bottom line

STRENGTHS:
  • In the expected price range
  • Induction motor
  • ON/OFF pedal
  • Aluminum frame
  • Good range of nozzles included
  • Onboard storage
WEAKNESSES:
  • No detergent dilution mechanism
  • Low PSI for the price
  • Low GPM for the price
  • Low CU for the price

Do you own the Kärcher K1900 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
FuelElectric
HandlingHand Truck
WaterCold (104°F max.)
PSI1900
GPM1.3
Cleaning Units2470
Motor13 amp, induction
PumpAxial
Other model numbers1.106-111.0
Features
FrameAluminum
Soap injectionYes
Soap tank1 gal, removable
Soap dilutionNo
Nozzles15°, 40°, Soap, Turbo
Quick connect nozzlesYes
Onboard storageYes
Hose25 ft
Hose storageHooks
Misc
Dimensions
(D x W x H)
Approx. 18.3 x 19 x 35.5 in
Weight39.3 lbs
Wheels2 wheels, ⌀10"
Included accessoriesWand, spray gun, high pressure hose, 35 ft GFCI power cord, 4 nozzles
SecurityTrigger lock
Warranty3 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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About Kärcher

Founded in 1935 by Alfred Kärcher, this family-owned business is headquartered in Winnenden, Germany. Credited with developing Europe's first hot water high-pressure washer in 1950, the company continues to pride itself on ingenuity and innovative thinking for new solutions in the cleaning industry. Kärcher also insists on being a socially- and ecologically-sustainable company. The popularity of the brand can be seen by the fact that the name Kärcher has in some European countries become a colloquial term used synonymously with pressure washers.

Warranty Information

The Kärcher K1900 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Kärcher pressure washers, please contact the Kärcher Customer Support: 1-800-537-4129.

Kärcher K1900
4.3 Total Score
1 review
Add your review
Ease Of Use
10
Value
1
Quality
1
Performance
5
1 Review
  1. 2.15
    Ease Of Use
    100
    Value
    10
    Quality
    10
    Performance
    50

    Works very well when it works. I bought 2 , one for the house and one for the cottage. It worked for about 3 or 4 times . Than the gun start leaking and not able to build pressure. I opened the gun and the valve is too weaks to handled the pressure and cracked . They both have exactly the same problem. I’m waiting to receive a new gun under warranty but unless they upgraded the valve the situation will be the same.

    + PROS: Good performance
    - CONS: Broke very quickly.
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