Torn between buying a GREENWORKS G40 or KARCHER K7 pressure washer?
Greenworks/Karcher manufacture quality pressure washers, with the G40 – and K7 Premium Smart Control Flex FJ reflecting just that. We compared the Karcher K7 Premium Smart Control Flex FJ and Greenworks G40 -, analysing features, power, performance, and reviews.
Karcher K 5 Power Control Flex
Best pressure washer pick, beating all comparable GREENWORKS pressure washers on value and performance.
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Get DealHow G40 – and K7 Premium Smart Control Flex FJ Pressure Washers Work
Greenworks G40 and Karcher K7 pressure washers use a 1900 W and 2800 W (Watt) electric motor to draw up water, which is pressurised to 135 and 180 bar, respectively. Water is forced through GREENWORKS – G40 and KARCHER Premium Smart Control Flex FJ K7 jet nozzle lance, creating a powerful stream of water used to clean dirty surfaces.
The G40 and K7 can clean cars, vans, paving stones, decking, and all types of outdoor items. With 135 and 180 bars of pressure, the Greenworks G40 and Karcher K7 are built to blast away stains, grime, moss, mud, and dirt from hard surfaces.
GREENWORKS G40 Specs
- Pressure Washer Brand: GREENWORKS
- Model: G40
- Series: –
- Power(W): 1900 W
- Pressure(bar): 135
- Flow rate(litres per minute): 7.00 l/min
- Hose Length(metres): 6m
- RRP: £209.00
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
GREENWORKS G40 and KARCHER K7 Motor Wattage and Bar Pressure
Karcher K7 and Greenworks G40 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 Greenworks G40 measuring 1900 W.
For bar pressure, the Greenworks – G40 is rated maximum 135 and the Karcher K7 – has max 180, which is plenty for thorough cleaning.
- Does G40 GREENWORKS produce cordless pressure washers? – Yes – GDC40 G-MAX 40V, G24PW, G24PWK4
- 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 GREENWORKS G40 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. GREENWORKS G40 and KARCHER K7 have flow rates of 7.00 l/min and 9.17 l/min, making them powerful at washing and rinsing.
- G40 flow rate: 7.00 l/min
- K7 flow rate: 9.17 l/min
Hose Length
The high-pressure hose length of K7 and G40 electric pressure washers affects reach. The GREENWORKS G40 comes with a 6m hose, and the KARCHER K7 measures 10m. Both G40 – and K7 Premium Smart Control Flex FJ pressure washer are compatible with hose extensions if required.
G40 – and K7 Premium Smart Control Flex FJ Accessories
GREENWORKS G40 – and KARCHER K7 Premium Smart Control Flex FJ pressure washers come with adjustable lance nozzles (varying spray patterns) and are compatible with Greenworks and Karcher accessories, including surface cleaners for patios, decking, and driveways, extension wands, brushes, detergent dispensers, snow foam, etc.
- Greenworks G40 Supplied accessories: Retractable Handle, Wheels, Variable Fan jet nozzle, Patio cleaner, Rotary Nozzle, foam sprayer, brush
- Karcher K7 Supplied accessories: Surface Cleaner, Q Smart Control gun, multi jet nozzle
| Brand | Model | Power (W) | Pressure (bar) | Hose (m) | Prices |
| GREENWORKS | G40 | 1900 W | 135 | 6 | £209.00 |
| KARCHER | K7 | 2800 W | 180 | 10 | £599.99 |
Where to buy the G40? – Buy direct from GREENWORKS, 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 GREENWORKS and KARCHER pressure washers on value and performance.
Offers Available
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