The 10'' Ecosoft Polyphosphate Crystal Filter contains
a mixture of polymeric metaphosphate compounds, the main one of which is
hexametaphosphate (hexamer of phosphate) which is why they are often referred
to as hexametaphosphate crystal filters.As the water passes through the filter, the crystals
slowly dissolve in it, giving it new properties. The polyphosphate crystals act
as dispersants in the water and exert a protective effect against the formation
of calcium and magnesium deposits (..