Instantly neutralizes chlorine, copper, lead and zinc, as well as other heavy metals found in tap and well water, all of which may be toxic to fish and plants. One ounce treats 600 US gallons of pond water.

8 oz. – Treats 4,800 gallons of water

16 oz. – Treats 9,600 gallons of water

32 oz. – Treats 19,200 gallons of water