Natural Chemistry Stain free Extra Strength

Stain Free Extra Strength quickly removes stubborn metal stains. Stain Free™ Extra Strength is a premium stain fighter that contains 100% ascorbic acid. It quickly removes metal staining without adding phosphates to your water. It is ideal for treating staining on all pool surfaces. Use with Natural Chemistry's METAL free and you have the ultimate 1-2 combination for stain fighting.