Head to head
Karcher HDS 5/11 U vs Karcher K4
The Karcher HDS 5/11 U is a professional hot water pressure washer, upright class. The Karcher K4 is a domestic electric pressure washer.
Last reviewed 13 September 2026
Specifications side by side
| Karcher HDS 5/11 U | Karcher K4 | |
|---|---|---|
| Flow rate | 450 l/h | max. 420 l/h |
| Max pressure | 110 bar | - |
| Max water temperature | 80 C | - |
| Motor power | 2.2 kW | - |
| Weight | 65.4 kg (with accessories) | - |
| Pressure | - | 20 - max. 130 bar |
| Rated input power | - | 1800 W |
| Weight without accessories | - | 5,5 kg |
| Dimensions | - | 302 x 346 x 849 mm (L x W x H) |
Sources: Karcher HDS 5/11 U, Karcher K4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HDS 5/11 U if...
The HDS 5/11 U is an entry point into Karcher's hot-water professional range, used by cleaning contractors and agricultural or workshop users needing hot water for grease and oil removal. It is a common unit on trade cleaning equipment hire fleets rather than a domestic purchase.
Full HDS 5/11 U specifications →Buy or hire the K4 if...
An entry-level domestic pressure washer used for patios, driveways, cars and garden furniture rather than trade cleaning work. Tool hire depots and general hire firms stock it as everyday, low-cost equipment.
Listed by
- WhyBuy - London
Common questions
What is the difference between the Karcher HDS 5/11 U and the Karcher K4?
The Karcher HDS 5/11 U is a professional hot water pressure washer, upright class; the Karcher K4 is a domestic electric pressure washer.
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