Mor-Cal is designed to raise calcium hardness in pool and spa water, helping prevent corrosion and surface damage. Proper calcium levels protect liners, heaters, and equipment while supporting balanced water chemistry. This fast-dissolving formula is easy to apply and ideal for routine water maintenance.
Suitable for both pools and hot tubs.
Key Benefits
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Raises low calcium hardness
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Helps prevent corrosion and etching
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Protects pool and spa surfaces
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Easy-to-use granular formula
Available at Swim & Spas—your local water care experts.
