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- Free shippingPuri Tech Chemicals 5 lb Calcium Hardness Increaser & 5 lb Alkalinity Increaser Kit for Swimming Pools & Spas Balance Chemical Levels Ke…+
- Free shippingPuri Tech Chemicals 10 lb Calcium Hardness Increaser & 10 lb Alkalinity Increaser Kit for Swimming Pools & Spas Balance Chemical Levels Ke…+
- Free shippingRaises calcium level in swimming pool water. Calcium Hardness level prevents foaming, equipment and surface erosion and scaling.Dosage:…+
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