B.E.S.T. 32oz Mildew Stain Remover with Sprayer. Removes stubborn mildew spots and mildew stains from those hard to clean areas. Just spray and wipe away, it is that easy. Mildew Stain Remover from Environmental Products of America works great on canvas pop up campers, vinyl cushions, vinyl chairs, boat tops, showers, awnings and curtains. We have all had that lawn chair or canvas top that was left out in the elements and had awful Mildew stains on them with no way to take them out. Now B.E.S.T. can remove your stains and make those items look new again. A great cleaning tip - this works best when surface is dry and you work in small areas from the bottom up. No rubbing is needed, just spray and wipe away. 32oz spray bottle.