Advertising Disclosure Karcher K4 Vs K4 Compact Comparison - June 2026
6 Best Karcher K4 Vs K4 Compact In the UK
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| 1 Best Choice  9.8Exceptional | 2 Best Value  9.7Exceptional | 3  9.6Exceptional | 4  9.4Excellent | 5  9.2Excellent | 6  9.0Excellent |
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ModelKärcher high-pressure washer K 4 Power Control Flex eco!Booster Black Edition, pressure: max. 130 bar, flow rate: 420 l/h, area: 30 m²/h, Power Control gun, flexible high-pressure hose, dirt blaster | Model Karcher K4 | K5 Full Control Pressure Washer Set Back Foot 4.100-775.0 | Model Kärcher 2.642-728.0 Full Control Dirt Blaster for K4-K5 - DB145, Black | Model Kärcher high-pressure washer K 4 WCM Flex eco!Booster Home, pressure: max. 130 bar, flow rate: 420 l/h, coverage: 30 m²/h, weight: 11.5 kg, extra flexible high-pressure hose, eco!Booster, Home Kit | Model Kärcher high-pressure washer K 4 WCM Flex eco!Booster Car & Home, pressure: max. 130 bar, flow rate: 420 l/h, coverage: 30 m²/h, weight: 11.5 kg, high-pressure hose, eco!Booster, Car & Home Kit | Model Kärcher K 4 Classic Home Pressure Washer, Pressure: max. 130 bar, Flow Rate: 420 l/h, Area: 30 m²/h, Water Filter, Weight: 4.6 kg, high-Pressure Gun, Dirt Blaster, Spray Lance, Home Kit |
BrandKÄRCHER | Brand KÄRCHER | Brand KÄRCHER | Brand KÄRCHER | Brand KÄRCHER | Brand KÄRCHER |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews |
Tech Specs | |||||
Weight34.0834657052 Pounds | Weight - | Weight - | Weight 11.5 kg | Weight 11.5 kg | Weight 4.6 kg |
Flow Rate- | Flow Rate - | Flow Rate - | Flow Rate 420 l/h | Flow Rate 420 l/h | Flow Rate 420 l/h |
High-Pressure Hose Length- | High-Pressure Hose Length - | High-Pressure Hose Length - | High-Pressure Hose Length 8 m | High-Pressure Hose Length 8 m | High-Pressure Hose Length 6 m |
Available On | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1KÄRCHERKärcher high-pressure washer K 4 Power Control Flex eco!Booster Black Edition, pressure: max. 130 bar, flow rate: 420 l/h, area: 30 m²/h, Power Control gun, flexible high-pressure hose, dirt blaster
Why we love it
50% better cleaning performance
35% recycled material for sustainability
Water source flexibility with suction hose
Main highlights- Save Water, Energy and Time: Gain 50% increased cleaning performance* thanks to the efficient yet powerful Eco!booster lance, perfect for use on sensitive surfaces such as wooden decks or cars. *Compared with the Kärcher standard flat jet
- Responsibly Made: This product contains 35% recycled material*, allowing you to clean effectively and sustainably. *product only, all plastic parts excluding accessories
- Kärcher Always On Hand: To help you get the job done our specifically designed app is full of useful hints and tips. From setting up the machine to step by step application tips.
- Get To Work Instantly- Get started with minimum effort. The Quick Connect system instantly links the high-pressure hose to the machine and trigger gun.
- Freedom to Clean Off-Grid: Never rely on a tap again. A water suction hose is supplied, allowing you to use alternative water sources for complete cleaning independence.
- Everything In One Place - Keep everything you need close to hand with on-board storage for the lances and cable.
- Easy To Pull And Store - Select the perfect pulling height with the telescopic handle, which retracts completely to save space when you don't need it.
- Cleaning Made Simple - Make light work of applying detergent with the Plug 'n' Clean system - just click in the bottle, choose your accessory, and you're good to go.
- Clean With Freedom: The 8m PremiumFlex anti-twist hose eliminates troublesome kinks and twists for comfortable, unrestricted application.
- Built To Last: You'll get years of use thanks to the state-of-the-art water cooled motor and 5 year guarantee, built for top performance and durability.
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9.7
2KÄRCHER38% Off
Karcher K4 | K5 Full Control Pressure Washer Set Back Foot 4.100-775.0
Why we love it
Durable metal design replaces flimsy plastic part.
Easy to install with basic tools.
Perfect fit for Karcher K4, K5 series.
Main highlights- See Compatibility List in Description for Machines It Fits.
- Manufacturer Part Number : 9.002-437.0
- Genuine Karcher Part.
- Fits Karcher K4, K5 Series
- Better Design.
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9.6
3KÄRCHER16% Off
Kärcher 2.642-728.0 Full Control Dirt Blaster for K4-K5 - DB145, Black
Why we love it
The Karcher Dirt Blaster produces up to 80 additional cleaning power, making it ideal for cleaning weather
worn or heavily soiled areas.
It is only compatible with Karcher K4
Main highlights- Only compatible with Karcher K4-5 pressure washers.
- Karcher Dirt blaster's produce upto 80% additional cleaning power.
- Ideal for cleaning weather worn or heavily soiled areas.
Our ranking system
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Features
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Consumer Reviews
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Popularity
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Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
