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Up to £115 off Kärcher pressure washers*

Via MSE Blagged codes. Gets £410 K5 for £295, the £310 K4 for £230 & £200 K Silent for £150
We've blagged big Kärcher discount codes for three of its pressure washers:
K5 Power Control Flex Car & Home (2025)* – £294.99 using the code MSEK5P (£409.99 without). There are 1,000 available. The next cheapest currently is £314.50 at B&Q. This is the most powerful of the three models with pressure up to 145 bar, and max 500 litres/hour flow rate.
K4 Power Control Flex Car & Home (2025)* – £229.99 using the code MSEK4P (£309.99 without). There are 1,000 available. The next cheapest currently is £263.98 at Amazon. This mid-range model gives pressure up to 130 bar, and max 420 litres/hour flow rate.
K Silent eco!Booster* – £149.99 using the code MSEKSL (£199.99 without). There are 2,000 available. This product isn't sold elsewhere. It has similar specs to the K4 model above, but is quieter and more compact.
See the table below for a comparison of the three models in greater detail.

The codes are valid until 11.59pm on Monday 7 July, or until all available pressure washers have sold. Delivery's free, and Kärcher says it should take about two to three days to arrive.
It's worth noting the K4 and K5 models in this deal are the latest 2025 versions that come with a flex hose. Some retailers, such as Costco, have offered older versions of these models for cheaper.
Model | |||
---|---|---|---|
Price with code | £294.99 | £229.99 | £149.99 |
Pressure (bar) | Max 145 | Max 130 | Max 130 |
Flow rate (litres per hour) | Max 500 | Max 420 | Max 420 |
Area performance (m²/hour) | 40 | 30 | 30 |
Power rating (kW) | 2.1 | 1.8 | 1.8 |
Weight without accessories (kg) | 12.4 | 12.1 | 5.1 |
Dimensions in mm (L x W x H) | 405 x 306 x 584 | 405 x 306 x 584 | 313 x 262 x 419 |
High-pressure gun | G 160 Q | G 160 Q | G 120 Q |
Guarantee | 3 years (6 if you register product within 28 days) | 3 years (6 if you register product within 28 days) | 3 years (6 if you register product within 28 days) |
Review rating/5 from Kärcher site | 4.1 (195 reviews) | 4.5 (433 reviews) | 4.7 (23 reviews) |
Unsure which pressure washer is best for you? Of course, we're MoneySavingExperts, not PressureWasherExperts, but retailer Screwfix has a handy pressure washer buying guide. It says pressure and flow rate are the most important measurements to consider (other sites we checked said this too). According to its information, the K4 and K Silent models are suited to medium duty jobs, while the K5 could be suitable for heavy duty jobs.
See more Home & Garden deals.
Kärcher 20% off everything code*

Including already-reduced items. For example, £90 window vac for £56
Kärcher* is most famous for its pressure washers, but it also sells a range of home and garden cleaning and maintenance items such as vacuum cleaners and window vacs. It's doing a 20% off sale this week, starting at midnight on Friday 18 April... but we've blagged an early access code so you can get the deal NOW – just in case stock runs out.
Use the code YWMSE20 at the checkout – it'll work on all items, including those already reduced. The code is valid until 11.59pm on Thursday 17 April (after that the discount will be available to all, so you won't need it).
Delivery's £2.95 or free on orders over £50, and Kärcher says it should take about 5-7 working days to arrive.
Examples of strong discounts we spotted using the code include:
-
Pressure washer eco!Boosters* – £23.99 with the code (all four models). Currently on sale for £29.99, normally £44.99. Next cheapest we found, £29.98 at Toolstation.
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WV 5 Plus Window Vac* – £55.99 with the code. Currently on sale for £69.99, normally £89.99. Next cheapest we found, £69.99 at Currys and Amazon. It was £49.99 via an MSE Blagged deal in June 2024.
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WV 5 Anniversary Edition Window Vac* – £55.99 with the code, currently £69.99. Next cheapest we found, £69.95 at Amazon (out of stock).
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Cordless SE 3-18 Compact Home spot cleaner* – £99.99 with the code. Currently on sale for £124.99, normally £249.99. Not found elsewhere.
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K 5 Power Control Flex Home* – £239.99 with the code. Currently on sale for £299.99, normally £379.99. Next cheapest we found, £339.99 at Amazon.
A cheaper alternative to buying brand-new is sometimes to look at refurbished items – either on specialist refurbished sites, or via an eBay outlet.
For more savings around the home, see our Home & Garden deals round-up.
Martin's Money Mantras
Use them
If you answer 'NO' to any of the following questions, don't buy.
Are you
Will I use it?
Is it worth it?
Are you
Do I need it?
Can I afford it?
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You shouldn’t notice any difference and the link will never negatively impact the product. Plus the editorial line (the things we write) is NEVER impacted by these links. We aim to look at all available products. If it isn't possible to get an affiliate link for the top deal, it is still included in exactly the same way, just with a non-paying link. For more details, read How this site is financed