Torn between buying a KARCHER K3 or KARCHER K7 pressure washer?
Karcher/Karcher manufacture quality pressure washers, with the K3 Power Control and K7 Premium Smart Control Flex FJ reflecting just that. We compared the Karcher K7 Premium Smart Control Flex FJ and Karcher K3 Power Control, analysing features, power, performance, and reviews.
Karcher K 5 Power Control Flex
Best pressure washer pick, beating all comparable KARCHER pressure washers on value and performance.
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Get DealHow K3 Power Control and K7 Premium Smart Control Flex FJ Pressure Washers Work
Karcher K3 and Karcher K7 pressure washers use a 1600 W and 2800 W (Watt) electric motor to draw up water, which is pressurised to 120 and 180 bar, respectively. Water is forced through KARCHER Power Control K3 and KARCHER Premium Smart Control Flex FJ K7 jet nozzle lance, creating a powerful stream of water used to clean dirty surfaces.
The K3 and K7 can clean cars, vans, paving stones, decking, and all types of outdoor items. With 120 and 180 bars of pressure, the Karcher K3 and Karcher K7 are built to blast away stains, grime, moss, mud, and dirt from hard surfaces.
KARCHER K3 Specs
- Pressure Washer Brand: KARCHER
- Model: K3
- Series: Power Control
- Power(W): 1600 W
- Pressure(bar): 120
- Flow rate(litres per minute): 6.33 l/min
- Hose Length(metres): 7m
- RRP: £139.00
KARCHER K7 Specs
- Pressure Washer Brand: KARCHER
- Model: K7
- Series: Premium Smart Control Flex FJ
- Power(W): 2800 W
- Pressure(bar): 180
- Flow rate(litres per minute): 9.17 l/min
- Hose Length(metres): 10m
- RRP: £599.99
KARCHER K3 and KARCHER K7 Motor Wattage and Bar Pressure
Karcher K7 and Karcher K3 pressure washers power is measured by their wattage and pressure (bar/force). Typically, pressure washers range between 1200 – 3000W, with the Karcher K7 rated at 2800 W and Karcher K3 measuring 1600 W.
For bar pressure, the Karcher Power Control K3 is rated maximum 120 and the Karcher K7 Power Control has max 180, which is plenty for thorough cleaning.
- Does K3 KARCHER produce cordless pressure washers? – Yes – 1.117-220.0, KHB 6, OC 3, KHB 4-18
- Does K7 KARCHER produce cordless pressure washers? – Yes – KHB 6, OC 3, 1.117-220.0, KHB 4-18
Water Flow Rate
Water flow rate of the KARCHER K3 and KARCHER K7 pressure washer is measured in litres per minute or hours, (l/min – l/h), and informs how much water the machine goes through. KARCHER K3 and KARCHER K7 have flow rates of 6.33 l/min and 9.17 l/min, making them powerful at washing and rinsing.
- K3 flow rate: 6.33 l/min
- K7 flow rate: 9.17 l/min
Hose Length
The high-pressure hose length of K7 and K3 electric pressure washers affects reach. The KARCHER K3 comes with a 7m hose, and the KARCHER K7 measures 10m. Both K3 Power Control and K7 Premium Smart Control Flex FJ pressure washer are compatible with hose extensions if required.
K3 Power Control and K7 Premium Smart Control Flex FJ Accessories
KARCHER K3 Power Control and KARCHER K7 Premium Smart Control Flex FJ pressure washers come with adjustable lance nozzles (varying spray patterns) and are compatible with Karcher and Karcher accessories, including surface cleaners for patios, decking, and driveways, extension wands, brushes, detergent dispensers, snow foam, etc.
- Karcher K3 Supplied accessories: Power spray lance, dirt blaster, high pressure handling hose, garden hose adapter
- Karcher K7 Supplied accessories: Surface Cleaner, Q Smart Control gun, multi jet nozzle
| Brand | Model | Power (W) | Pressure (bar) | Hose (m) | Prices |
| KARCHER | K3 | 1600 W | 120 | 7 | £139.00 |
| KARCHER | K7 | 2800 W | 180 | 10 | £599.99 |
Where to buy the K3? – Buy direct from KARCHER, or see best buy
Where to buy the K7? – Buy direct from KARCHER, or see best buy
Karcher K 5 Power Control Flex
Best pressure washer pick, beating all comparable KARCHER and KARCHER pressure washers on value and performance.
Offers Available
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