Window cleaning service providers probably know that water quality means a lot when you cleaning windows.
After the poor quality water flushed, you'll find the glass looks like the picture shows.
Why are there water spots? Because the water you use has a high level of TDS-- Total Dissolved Solids.
But if you use our DI cartridge, the TDS will get very low even down to 0. And you'll find window cleaning is easier to finish.
And the cartridge is easy to use, just connect it to tap water pipe and let water flow through, you'll get pure water soon.
Welcome to inquiry about our high cost effective DI cartridges.