Progressive can provide you with several options for the removal of solids and iron from your water or wastewater. Our line of centrifugal solids separators can remove 98% of 200 mesh or larger sand, grit, and other solids from 10 to 6000 gpm. Our chemical-free iron removal systems effectively remove high iron concentrations and odors from your water by oxidation and filtration. Only water is used to backwash the filter media.