IPA: /ˈfɪltrəbl/
KK: /ˈfɪltrəbl/
Able to be filtered or passed through a filter.
The water is filtrable, making it suitable for purification processes.
Filtrable → It is formed from "filter" (from Old French *filtre*, meaning a device for removing impurities) and "-able" (meaning capable of). The word "filtrable" means capable of being filtered or able to pass through a filter.
Think of a device that removes impurities ('filter') and remember that 'filtrable' means something that can be filtered.