1 liter Refill (700g net weight) - for water filter (in-Ta-Fil, Claris, Aqua Prima, Intenza, Laurastar) / humidifier (eg Solis) / ultrasonic
I use the filter Aqua Select Plus water filter glass Univers. One liter Refill ranged for 10 fillings. I change the granules approximately every 2 weeks, when the tea starts to become oily - consumption 2-3 liters of tea per day.