1. Made of walnut-shell active carton specific for treatment of water, no
impurities, and highly absorbent.
2. I can eliminate the smell and yellow substances in the water efficiently, and
decomposing dissolvable organic substances, carbolic acid and tannic acid,
and the residual chlorine in tap water.
3. Having a longer average working life-more than one time that of the
ordinary active cartons; 250g can treat 4. 4. 200liters of water for over 40 days.
4. Active carbon has a neutral pH value and has no impact on water quality.