Is this compatible with the karcher k4 pressure washer

Yes it is, all karcher accessories fit old and new power washers

dose it fit the Karcher k2 full control power washer

Hello, I understood that all Karcher accessories were compatible with Karcher washers. I have a K4. However the Karcher site states that single lance extension is an available extension for the K2 Full Control Power Washer (but please confirm on their site that I have checked the correct model). Hope this helps.

how many awill i ned to reach my top window on a 2 storey house please

Well you need to consider that each extension is approximately 0.5 meters in length. Work out how far it is to your upstairs window and divide that distance by 0.5m!I'm not convinced that is the best way to reach such large distances because each joint would present a weak spot. If you want my opinion, I'd approach Karcher for a purpose made window cleaning device!

Does this fit the Karcher 520M

I'm unsure has the product description states that it is compatible with Karcher K2 to K7 series pressure washers. I purchased it as the one I have is a K2. You could ask the seller who is a Karcher dealer and should know if it would. Telephone: 0345-890 3600, or ask the question through the Amazon Ask a question; left click on the sellers name on Amazon product page i.e. Karcher Centre Chemtec.

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🚀 Elevate your clean game—reach further, clean smarter!

REACH NEW HEIGHTS - Extend your cleaning power by 0.5 meters for those hard-to-reach spots.
MAXIMIZE EFFICIENCY - Supports a powerful 200 L/min flow rate for fast, thorough cleaning.
ROCK SOLID STABILITY - Union bolt ensures a firm, wobble-free connection every time.
LIGHTWEIGHT DURABLE - Stainless steel build at just 300g combines strength with easy handling.
EFFORTLESS COMPATIBILITY - Seamlessly fits Kärcher K2-K7 series pressure washers—no guesswork needed.

The Kärcher Spray Lance Extension (2.643-240.0) is a lightweight, stainless steel accessory designed to extend your Kärcher K2-K7 pressure washer lance by 0.5 meters. Featuring a secure union bolt for stable attachment and supporting a high flow rate of 200 liters per minute, it enables efficient cleaning of difficult-to-reach areas with ease.

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Manufacturer	Kärcher
Part Number	2.643-240.0
Product Dimensions	50 x 6.2 x 6.2 cm; 300 g
Item model number	2.643-240.0
Size	長さ:40cm
Colour	Multi
Style	Original Packaging
Material	Stainless Steel
Pattern	Single
Power Source	Hand-operated
Item Package Quantity	1
Number of Pieces	1
Flow rate	200 Litres Per Minute
Hose Length	2.5 Metres
Included Components	1x Lance Extension
Batteries included?	No
Batteries Required?	No
Item Weight	300 g

Kärcher Spray Lance Extension for Pressure Washer Accessory, 2.643-240.0

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