Aqua Water Shock Concentrate Instantly removes bad taste or smells from boat or RV’s potable water caused by chlorine, Sulphur, plastic, or metal odor and taste. Aqua Water Shock Concentrate - 16 oz. | Star Brite 097116 Instantly removes bad taste or smells from boat or RV’s potable water Ideal for use after seasonal storage to “freshen” water tanks Removes chlorine, sulphur, plastic or metal odor and taste Provides long-lasting effect, even in extreme temperatures 1 fluid ounce treats 10 gallons of water