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A convenient granular product for raising calcium hardness. Addition of this product as required will help protect pool from corrosion & help prevent staining. Raise calcium hardness in water to recommended level Help protect pool surfaces, plumbing, and equipment from corrosive conditions
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2025
$12.99