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Kärcher K1800PS - 1800 PSI 1.2 GPM Electric Pressure Washer

The Kärcher K1800PS is an electric pressure washer offering a maximum water pressure of 1800 PSI and flow of 1.2 GPM. (Read full specs)

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Kärcher K1800PS 1800PSI Electric Pressure Washer
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Features and Specifications

General
FuelElectric
HandlingHand Truck
WaterCold (104°F max.)
PSI1800
GPM1.2
Cleaning Units2160
Motor13 amp, universal
PumpAxial
SeriesPS
Other model numbers1.106-201.0
Features
FramePlastic
Soap injectionYes
Soap tank0.3 gal, removable
Soap dilutionNo
Nozzles15°, Soap, Turbo
Quick connect nozzlesYes
Onboard storageYes
Hose20 ft
Hose storageDedicated slot (top)
Misc
Dimensions
(D x W x H)
Approx. 17.5 x 16.5 x 33.1 in
Weight20.7 lbs
Wheels2 wheels, ⌀8", never flat
Included accessoriesWand, spray gun, high pressure hose, garden hose adapter, 35 ft GFCI power cord, 3 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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Description

The K1800PS was developed to offer high cleaning performance and unparalleled ease of use. This electric pressure washer delivers 1800 PSI of TruPressure™, ensuring you get the highest level of cleaning power and driven by a reliable universal motor. It includes convenience features such as a unique on/off foot switch, a handy storage bin, large one-half gallon removable detergent tank and three spray nozzles (including a turbo nozzle for intense cleaning). It is perfect for tackling typical outdoor cleaning jobs. (source: Kärcher (opens in a new tab))

Zoom on the Kärcher K1800PS

In a nutshell, the Kärcher K1800PS is a light duty pressure washer that allows:

  • intense cleaning of hard, unpainted surfaces
  • applying detergent and cleaning solutions
  • intense cleaning of hard surfaces

Its power characteristics and design, its main features and all its additional features are presented ahead.

Power

Powered by a 13 amp universal motor, its axial pump can deliver a pressure of 1800 PSI (around 30 times more than a standard garden hose) and a flow of up to 1.2 GPM (CETA-certified values). Combined, these values mean that the Kärcher K1800PS has a cleaning power of 2160 Cleaning Units.

Kärcher allows you to easily start this electric pressure washer, utilizing the K1800PS's ON/OFF pedal. The unit is ready-to-use with peace of mind, thanks to the included 35 ft GFCI cord.

Design & Handling

The Kärcher K1800PS offers superb mobility, with a hand truck design and approximate dimensions of D17.5 x W16.5 x H33.1 in. The folding handle enhances its mobility, while allowing for a convenient storage.

Standing at only 20.7 lbs, this model can be carried around very easily. Among other factors, the plastic frame plays a role in this light weight. A set of two 8" never-flat wheels also improves the ease of transport of the device.

Main Features

The Kärcher K1800PS comes with a spray gun, a wand, a pressure hose, 3 nozzles and a detergent injection feature, which are detailed below.

  • Soap injection: A safe detergent storage is facilitated by a removable 0.3 gal tank. It must be noted that the Kärcher K1800PS doesn’t come with a soap dilution mechanism. Therefore, you must always make sure that your detergent is correctly diluted. If a soap nozzle is attached, the device will proceed to add the detergent to the water automatically.
  • Pressure hose: Using a dedicated slot, the included 20 ft high-pressure hose can be easily stored on the unit when it is not running.
  • Spray gun and wand: A front sheath allows for an easy storage of the included classic ergonomic spray gun and its wand.
  • Nozzles: The table below shows you the 3 included nozzles, as well as the surfaces they're the most appropriate for.

15°

Soap

Turbo
Concrete, brick, masonrySuitableSuitableUse with caution
Siding, gutters, houseUse with cautionSuitableNot recommended
Fencing, deck, patioUse with cautionSuitableNot recommended
Lawn equipment, boat, RVUse 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 K1800PS

The Kärcher K1800PS nozzles

  • Onboard storage: Stay prepared for any job with Kärcher K1800PS's handy storage area, which allows you to neatly store any nozzles and accessories which you may need for the job.
  • Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation).
  • Accessories: The Kärcher K1800PS comes with an owner's manual (opens in a new tab) and some basic documentation to get you quickly started. On top of that, you also get power cord, wand, garden hose adapter, pressure hose and spray gun.

The Kärcher K1800PS's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Kärcher K1800PS compare to similarly priced pressure washers.

  • The Karcher K1800PS, a device which can produce up to 1800 PSI, is on the lower end of the pressure spectrum, among the electric pressure washers in the $170-200 price range. If the highest possible power of the water stream is your priority, one of the champions in this price range is the Craftsman CMEPW2400 with 2400 PSI.
  • In the aforementioned price range, this washer, with 1.2 GPM (gallons per minute), is placed on the lower end of the GPM scale. If you’re after the highest rinsing efficiency, one of the units with the highest water flow in the current price range is the Sun Joe SPX4000, that can deliver up to 1.76 GPM.
  • In comparison to other electric units of similar price, the 2160 Cleaning Units (PSI X GPM) of the K1800PS are average. When it comes to the highest overall cleaning power in the current price range, one of the products at the very top currently is the Pulsar PWE2000 and its 3200 Cleaning Units.

Price comparison

As you can see from this interactive chart, when compared to other electric washers between 2000 and 2500 Cleaning Units, the Karcher K1800PS 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
  • ON/OFF pedal
  • Onboard storage
AVERAGE SPECS:
  • Decent CU for the price
WEAKNESSES:
  • Could include more nozzles
  • No detergent dilution mechanism
  • Low PSI for the price
  • Low GPM for the price

Do you own the Kärcher K1800PS and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

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 K1800PS 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 consult Kärcher's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-537-4129.

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