Description
The DuraChlor Hardness Increaser 4 lb (C002711-CS77C1) by Haviland is a professional-grade pool water balancer formulated with 100% Calcium Di-Chloride. This fast-dissolving granular formula safely and effectively raises calcium hardness levels in swimming pool water, protecting pool surfaces, equipment, and plaster from the corrosive effects of soft, low-hardness water. Maintaining proper calcium hardness is essential for the long-term health of any pool.
