WV 2 + KV 4

For effortless window cleaning: the vibrating KV 4 cordless wiper, which dispenses water electrically and vibrates, removes the dirt – the WV 2 Window Vac removes the dirty water.

The WV 2 and KV 4 make a great team for clean windows and other smooth surfaces. First, the vibrating KV 4 cordless wiper removes dirt from surfaces effortlessly. Excess fluid can then be removed easily with the WV 2 Window Vac. The KV 4 dispenses water automatically and together with its vibration function dirt is removed easily – without any scrubbing. The Window Vac's electric water suction guarantees drip and streak-free surfaces. The new Kärcher Duo is not messy, but easy to use – and it saves you a lot of time and effort too.

Features and benefits
Lightweight and quiet
  • Its low weight and pleasantly low noise level make window cleaning with the WV 2 even more convenient.
Exchangeable suction nozzle
  • Choose between a large or small suction nozzle, based on the size of the cleaning surface.
LED display in field of view
  • The in-built LED display on the on/off switch tells you in good time when the battery needs to be charged.
Quick and easy-to-use tanks
  • The KV 4 fresh water tank as well as the WV 6 dirty water tank can be filled and drained quickly.
Three times quicker
  • Window cleaning is three times faster with the Window Vac than with conventional methods.
Vibration function
  • The vibrations help you clean and removes stubborn dirt for you.
Electric water dispensation
  • The wiping cloth is automatically wetted so that the surface can be wetted and wiped in one step.
Drip-free and streak-free results
  • Thanks to electric water vacuuming, dripping water is now a thing of the past. For sparkling clean windows.
Completely hygienic
  • Easily fill and drain the KV 4 fresh and WV 6 dirty water tank without coming into contact with water or dirt.
Diverse applications
  • Suitable for all smooth surfaces, such as tiles, mirrors or shower cabins.

Technical data

Working width of suction nozzle (mm) 280
Dirty water container capacity (ml) 100
Battery run time (min) 25
Battery charge time (min) 120
Battery type Lithium-ion battery
Cleaning performance per battery charge Approx. 75 m² = 25 windows
Current type (V/Hz) 100 - 240 / 50 - 60
Weight incl. battery (kg) 0,6
Weight without accessories (kg) 0,6
Weight incl. packaging (kg) 1,4
Dimensions (L × W × H) (mm) 120 x 280 x 320


  • Suction nozzle width, 280 mm
  • Battery charger
  • Window cleaner concentrate (1 x 20 ml)
  • Exchangeable suction nozzle
  • Wiping cloth, 1 x
Application areas
  • All smooth surfaces
  • Windows
  • Mirrors
  • Tiles
  • Glass tables
  • Shower cabins
Cleaning agents