Bio-Dex Plaster White 'N Brite for Acid Wash, 32 oz Bottle | PWB32 FC9450 Active ingredient: 60% Polyquat

Active ingredient: 60% Polyquat

Powerful formula works on all filter types

fast acting

confirm your filter uses a 7 full + 1 partial grid layout and that your existing grids measure 12" × 11"

and abrasions resulting from exposure to rocks

Bio-Dex Plaster White 'N Brite for Acid Wash, 32 oz Bottle | PWB32 FC9450 Active ingredient: 60% PolyquatSize: 32 oz Bottle Plaster white n brite is an acid wash additive that thickens acid for non streaking application while eliminating fumes and etching problems associated with using acid alone. Its an environmentally safe product that isnt corrosive, toxic or difficult to use. It is a great choice for acid washing that is user friendly and completely biodegradable. The product produces better results than acid alone. (can be used on colored plaster) .