Check the listing for details. Leisure Time RENU2 Renew Non-Chorine Shock 2-Pound | RENU2 (1 Pack). Condition: New. Listed at 29.99 USD. Chlorine-Free Shock: Designed as a non-chlorine shock treatment, ideal for those who prefer to minimize chlorine usage in their spa or hot tub.Oxidizing Properties: Effectively oxidizes organic contaminants, oils, lotions, and other impurities, helping to maintain clean and clear water.Water Clarity: Restores water clarity by eliminating cloudy or dull appearance caused by organic buildup and contaminants.Odor Removal: Helps eliminate unpleasant odors commonly found in spa water, leaving behind a fresh and clean scent.Fast-Acting Formula: Provides rapid oxidation of contaminants, allowing for quick treatment and restoration of water quality.Chlorine-Free Shock: Designed as a non-chlorine shock treatment, ideal for those who prefer to minimize chlorine usage in their spa or hot tub.Oxidizing Properties: Effectively oxidizes organic contaminants, oils, lotions, and other impurities, helping to maintain clean and clear water.Water Clarity: Restores water clarity by eliminating cloudy or dull appearance caused by organic buildup and contaminants.Odor Removal: Helps eliminate unpleasant odors commonly found in spa water, leaving behind a fresh and clean scent.Fast-Acting Formula: Provides rapid oxidation of contaminants, allowing for quick treatment and restoration of water quality.