Leisure Time B-04 Defender for Spas and Hot Tubs, 1-Quart, 4-Pack

Product Description This product helps prevent the build-up of scale in spas and aids in the removal of existing scale. Compatible with bromine and chlorine sanitized spas. 1. Add 2 oz. of this product directly to the spa for each 500 gallons of spa water. 2. Run filter for 1 hour or normal filtration cycle. 3. Apply treatment at least once per week.