Two stages filtration, ceramic and carbon filter 0.5 micron rating, the carbon we using are NSF carbon material for sweeter water taste.
Ceramic responsible for all the sediment, mud, dirt, rust etc and the carbon is mainly for Chlorine, bad taste and bad odour and some other chemicals.
The ceramic is washable (we will supply you with the sandpaper to scrub it when it becomes dirty), but please remember washable for limited number of time only, once all the ceramic is gone, you will need change it with a new cartridge.
The cartridge average use is 3 months (depends on your water quantity and quality could be longer or shorter time).