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K3 1,800 PSI 1.5 GPM Electric Pressure Washer

  • Fixed handle and large rear wheels allow for easy transport
  • Onboard detergent tank for convenient soap application
  • 2-year warranty backed by the no-hassle Rapid Exchange Program
  • View More Details

Product Overview

Karcher's award-winning K3 series of pressure washers offers premium performance in a compact package. Equipped with two spray wands, the K 3.450 is able to tackle any cleaning project around the home. For tough jobs, attach the included DirtBlaster spray wand to increase the effective pressure by up to 50%. For less intense cleaning, attach the included Vario Power Spray (VPS) wand, which allows you to adjust the pressure right on the wand. This model also comes equipped with an onboard detergent tank that makes detergent application a snap. Simply fill the tank with pressure washer detergent, attach the VPS spray wand, select the low pressure setting and apply the detergent mixture to the area you wish to clean. The K 3.450 features an upright, ergonomic design, is easy to maneuver and takes up very little storage space. You can even draw water from a standing source, a feature that comes in handy when a water faucet isn't available. (Optional accessory required) Generating up to 35 times the pressure of a garden hose while using up to 80% less water, the K 3.450 enables you to clean more quickly while reducing water consumption. Its induction motor also lasts up to three times longer than pressure washers powered by universal motors. Much quieter than a gasoline pressure washer and certified by CSA International for safety, the K 3.450 is perfect for residential neighborhoods and subdivisions.
  • Karcher promise: cleaner, quicker, best-in-class cleaning performance
  • 1,800 psi, 1.5 GPM electric pressure washer
  • Tall fixed, durable handle
  • 25 ft. high pressure hose
  • Vario power spray wand easily adjust spray right from the wand
  • Dirtblaster spray wand tackles the hardest jobs in half the time
  • N-COR pump durable, non-corrosive and maintenance-free
  • Onboard detergent tank
  • 7.7 in. high impact wheels
  • 35 ft. GFCI power cord
  • 2-year warranty
  • Rapid exchange program no hassle warranty

Info & Guides

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K3 1,800 PSI 1.5 GPM Electric Pressure Washer
K4 1900 PSI 1.5 GPM Electric Pressure WasherExclusive2300 PSI 1.2 GPM High Performance Electric Pressure Washer
NameK3 1,800 PSI 1.5 GPM Electric Pressure WasherK4 1900 PSI 1.5 GPM Electric Pressure Washer2300 PSI 1.2 GPM High Performance Electric Pressure Washer
Pressure Washer Power TypeCorded ElectricCorded ElectricCorded Electric
Gallons Per Minute1.51.51.2
FeaturesChemical/detergent injectionAdjustable wand,Chemical/detergent injection,Foldable handle,Kink free hoseCord Lock,Quick connect tips
IncludedDetergent tank,GFIC plug,Onboard cord storage,WheelsDetergent tank,GFIC plug,Onboard cord storage,WheelsDetergent tank,GFIC plug,Onboard cord storage,Onboard storage,Wheels
Nozzle TypeAdjustableAdjustableTurbo Nozzle
Suggested Use Car,Decking,Driveway,Grill,Patio Furniture,SidingCar,Decking,Driveway,Grill,Paint Preparation,Patio Furniture,Siding,Window
Commercial / Residential Residential
View ProductView ProductView Product



Assembled Depth (in.)
13.11 in
Assembled Height (in.)
34.21 in
Assembled Width (in.)
14.65 in
Hose length (in.)
Interior Hose Diameter (In.)
Wheel Diameter (in.)


Amperage (amps)
Assembly Required
Connection Type
3/8 in. Quick Connect Hose & Trigger Handle
Cord Length (ft.)
Chemical/detergent injection
Gallons Per Minute
Hose Material
Detergent tank,GFIC plug,Onboard cord storage,Wheels
Maximum Pressure (PSI)
Nozzle Type
Number of tips included
Pressure Washer Power Type
Corded Electric
Product Weight (lb.)
Pump Brand
Pump Type
Start Type
Electronic Ignition
Water Temperature

Warranty / Certifications

Manufacturer Warranty
1 Year Limited

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Customer Reviews

  • 4
    out of 47 reviews
  • 72% recommend this product
Filter by:
Showing 1-10 of 47 reviews
Water gun stops working every few minutes
I bought this pressure washer last year and have been having trouble with the water gun. It stops every few minutes. I need to unplug and empty the hose every time and now it completely stopped working. I can’t even unscrew the gun as it screwed really hard on the machine.
    spray gun is junk
    The spray gun has failed. Will not shut off the water as it should thus causing it to run continuously even if the trigger is released.
      Powerful 1800.
      The K1800 is powerful enough to clean patio and sidewalks of dirt and stains that accumulate through winter. It cleans more quickly than previous electric 1800 PSI's that I owned. I also purchased the second story nozzles. The nozzle did very well in cleaning the upper sections of the siding without using the soap dispenser nozzle. The reason for not rating 5 stars is that the hose connection to the pressure washer leaks water profusely. I would recommend more highly if the the leakage problem could be solved.
      • Verified Purchase
      I Bought this product from a major box store, thinking that all the wonderful reviews would overtake the bad ones. Boy was I wrong! The motor wouldn't shut off both times, this wand is made of cheep plastic. I would not recommend buying this product.
        Good customer service and great product
        Only bought because of Pulpmx podcast. So glad I did, much better setup and quality then my other electric washer.
        • Verified Purchase
        • Recommended
        Good as gas?
        Powerful enough and easy to use. Bought it about a month ago to clean up after 2 major storms. Got the job done washing away silt & grime from concrete, furniture, other items, quick and easy. So much better than my previous gas one bc no hassles with starting, more parts going bad (e.g., gas line), buying gas, etc. But powerful enough to get the projects I need just as well. Great features for ease of operation. Caveat-learned it won’t work properly using extra long hose. Cuts on and off quickly. Changed to smaller hose and worked fine. Price was right too!!
        • Verified Purchase
        • Recommended
        Great product!
        Lots of fun to use and does the job. Easy to attach hoses and easy to attach nozzles. Bin could be a little bigger for the hose which is a tight fit, but not bad. i like the overall size of the product. Use a regular garden hose with it and one that is durable and newer.
          • Recommended
          Easy to use
          Easy to assemble, easy to get started and use. I had 1 problem: while changing tips I did not lock in the yellow nozzle & when I pressed the trigger it shot off ‘ got lost
          • Verified Purchase
          • Recommended
          I used this unit 2 times and now the motor has to keep being reset by the plug to even work a few minutes then you have to do it again. The unit is not hot at all since I just started cleaning the patio with it. It's a piece of junk. Spend another 50 to 100 for a more reliable better made product. Do not recommend ! Has issues.
            Better than I expected
            I had a Karcher K3 for over 10 years and it was great. The K1800 I bought to replace the K3 blew me away. Easy to handle and move around as well as extremely powerful. Glad I got it.
            • Verified Purchase
            • Recommended
            Showing 1-10 of 47 reviews