Starbrite Aqua Water Treatment & FreshenerUse Starbrite's Aqua Water Treatment and Freshener to maintain perfect drinking water quality in boats and RVs. This biodegradable formula safely prevents water from taking on chlorine, sulfur, plastic, or metal odor or taste.Features: Prevents foul tasting or smelling potable water.; Can be used as often as needed to ensure quality of bathing and drinking water and ice.; 1 fluid ounce treats 20 gallons of water.; Directions:Before adding fresh water to tank, add 1 fluid ounce of AQUA Water Treatment & Freshener for every 20 gallons of potable water to be treated then fill tank. Use as often as needed.Click to Download Starbrite Aqua Water Treatment & Freshener MSDS