Cleans mildew stains. Prevents soap scum, hard water and other stains. No. 1 daily shower cleaner (Based on unit sales). Value size refill vs. 32 oz. Just spray & walk away. Daily use prevents the buildup of soap scum, hard water and other stains. No more scrubbing. No harsh chemical fumes. Does not leave a dull residue when used as directed. Does not contain bleach. Ingredients, questions or comments call 1-800-926-5222, Mon. - Fri. 9am - 5pm ET. 100% satisfaction guaranteed. Made in the USA with US & foreign ingredients.