Quick Summary
Kärcher Window Cleaner Concentrate RM 500 is a 500ml concentrate for cleaning windows, glass, mirrors and shower screens. It is described as diluting to 4 litres of cleaning liquid, giving a larger working volume from one bottle.
The concentrate is stated for streak-free cleaning of water-resistant smooth surfaces and can be used manually or with the Karcher Spray Bottle.
Who It Is Best For
This product suits buyers looking for a window and glass cleaning concentrate for smooth, water-resistant surfaces. It is also relevant if you want a product that can be used by hand or with the Karcher Spray Bottle.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Kärcher. |
| Product name | Window Cleaner Concentrate RM 500. |
| Pack size | 500ml concentrate. |
| Dilution | Dilutes to 4 litres of cleaning liquid. |
| Intended surfaces | Windows, mirrors, glass tables and glass shower screens, plus other water-resistant smooth surfaces. |
| Use method | Can be used manually or with the Karcher Spray Bottle. |
Why Buyers Choose It
- It is stated for streak-free cleaning of smooth, water-resistant surfaces, which is the main requirement for glass and mirror cleaning.
- The 500ml concentrate dilutes to 4 litres of cleaning liquid, so one bottle makes a larger amount of ready-to-use solution.
- It is described as suitable for manual use or with the Karcher Spray Bottle, giving two ways to apply it.
- The formula is described as biodegradable, which may matter to buyers who want that product feature.
What To Know Before You Buy
Check that you are buying a concentrate rather than a ready-to-use cleaner. The bottle is 500ml and is stated to dilute to 4 litres, so measure the mix carefully if you want the intended cleaning strength.
It is intended for water-resistant smooth surfaces, including windows, mirrors, glass tables and glass shower screens. Use it only where that surface type matches your cleaning task.
Pros: One bottle makes 4 litres of cleaning liquid.
Cons: It is a concentrate, so it must be diluted before use.
Common Buyer Questions
What surfaces is it for?
It is stated for windows, mirrors, glass tables, glass shower screens and other water-resistant smooth surfaces.
Can it be used by hand?
Yes. It can be used manually or with the Karcher Spray Bottle.
How much cleaning liquid does it make?
500ml of concentrate dilutes to 4 litres of cleaning liquid.
Does it remove stubborn marks?
It is described as removing stubborn stains such as grease, insects and dirt.
Final Buying View
If you need a window and glass cleaning concentrate for smooth, water-resistant surfaces, Kärcher RM 500 is a straightforward option to compare. Check the dilution ratio and confirm your intended surface before ordering.





