No. 1 daily shower cleaner (Based on unit sales). Value size refill vs 32 oz. Cleans mildew stains. Prevents soap scum, hard water and other stains. Scrub free. Just spray & walk away. Daily use prevents the buildup of soap scum, hard water and other stains. No more scrubbing. No bleach or ammonia. Fresh clean scent. To get benefits immediately, start with a clean shower. We recommend using scrub free bathroom cleaner plus the power of OxiClean soap scum fighters or scrub free bathroom cleaner with bleach.