Airmax Eco Systems CC090-5 CrystalClear Polish AC 5 Lbs.

Activated pond charcoal removes tannins and chlorine Acts as an odor absorber and removes pond pollutants to keep water clarity crystal clear This carbon charcoal polishes water and removes microscopic debris Removes harmful ammonia, nitrite & nitrate 5 lbs pail treats up to 2,000 gallons