I bought some time ago the battery-electric window vac WV 75 of Kärcher, and I must say I'm thrilled. After initial skepticism, if I get really so streak-free window, I was taught by the outstanding results of another.
Because of course I still needed cleaning, I bought this concentrate by Kärcher equal to. For this cleaner you can get cleaner with a mixing ratio of 1:10 by filling with water over 6 liters. This then also the price is only slight. I get for this price ever cleaner in such an amount in the trade. The cleaning power is also nothing to complain about at all. If the concentrate was filled with water, briefly shake the spray bottle - 'so that everything is mixed well together -' and then spray on the window pane to preening. With the microfibre cloth on the plate and aspirate. The cleaner does not leave any streaks - 'just clean clear windows. And all this in a very short time - 'simply fantastic.
Conclusion: With the cleaning result, I am more than satisfied and the price is unbeatable. Therefore, there is of me deserved 5 star and a strong buy recommendation.
If this review has helped you in making decisions, I would be so delighted.