Kärcher built the first European hot-water pressure washer in 1950 and the yellow machine has been the category’s default ever since. On this site the brand appears in more families than any other: pressure washers, steam cleaners, wet and dry vacuums, ash vacuums, window vacuums, sweepers, surface cleaners and most of the consumables that feed them.
What the range does well
Consistency. A Kärcher accessory bought today fits a machine bought five years ago, spares are stocked by ordinary retailers across Europe, and the model naming — K 2 to K 7, SC 1 to SC 5, WD 3 to WD 6 — tells you where you are in the range without a specification sheet.
The K-series step-up is honest, too: the difference between a K 3 and a K 5 is flow rate and build, not marketing.
Where to be careful
Two things. First, the bayonet fitting is proprietary: it makes Kärcher accessories effortless and everything else incompatible, which is why the adapters family exists on this site. Second, the range is broad enough that model names repeat across very different machines — the SC 2 Deluxe is a cylinder steam cleaner and the SC 2 Upright is a floor mop, and they do different jobs.
What we rank it on
Published specifications rather than reputation. Where Kärcher publishes a flow rate — the K 4 at 420 l/h, the K 5 at 500 l/h — the machine can be compared honestly. Where it does not, as on the K 3, the page says so.
