The Charcoal Water Filter Stick - Regular from Kishu turns any pitcher into a water purifying vessel in minutes! These artisan-made charcoal sticks are a great replacement to the traditional plastic heavy purifiers and are a great option for 1-2 quarts in at-home vessels. The NSF Certified Activated Charcoal works by trapping toxins like lead, mercury, copper, aluminum, uranium, and molybdenum - heavy metals that one does not want in their drinking water! Whats left is delicious drinking water infused with calcium, magnesium, and potassium. These filters will work on 1-2 quarts a day, for up to 4 months! Start drinking clean water today with this zero-water purifier!