Two active carbon replacement packs for the Katadyn Vario water filter. Activated carbon reduces chlorine and other malodorous, health-endangering chemicals.

The activated carbon capacity depends on water quality. The normal capacity is 200 liters (50 gallons). However, high chemical or odor concentration can reduce the capacity. Replace the carbon when you notice an unpleasant taste or odor after filtering or after 6 months of constant use whichever comes first.