Iron, manganese and hardness.
Ammonia, lead, hydrogen sulphide and copper can also be reduced.

Iron and manganese

Iron, manganese and hydrogen sulphide

Iron and manganese

Oranics and Tannins (eg peaty water)

Sediment down to 40 micron for sand or 20 micron for Filter Ag

Empty vessel with manual backwashing head. Ideal for low flow pH correction or carbon filters or where electricity is not availble.