Sirona Spa Care Defend is a specialized liquid blend of organic polymers. It's formulated to remove and prevent stains and scale buildup in spas and hot tubs, compatible with various sanitizers like bromine, chlorine, ozone, minerals, and biguanide.
For spas up to 800 gallons, use 2 fluid ounces Sirona Defend. For spas over 800 gallons, use 4 fluid ounces of Sirona Defend. Use this product when water is cloudy. For best results, use this product weekly. Add recommended dosage directly to the spa.
