Filter Fit® is a low-corrosive formulation used to remove surface deposits from filtration basins, troughs, clarifiers and other accessible water treatment plant surfaces. It is specially created to remove scale and algae buildups as well as potassium permanganate stains. Additional benefits include elimination of surface-borne chlorine demand and removal of unsightly stains. Each container of Filter Fit come with an air gap to allow the accompanying Floran Catalyst to be mixed into the Filter Fit container at time of use.