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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
not a replacement part for an existing cleaner
No CYA Added – Contains no cyanuric acid
improved energy efficiency
Why a Quality Backwash Hose Matters
Sirona Calcium Booster Spa Hardness Increaser Filter Parts not a replacement part forSirona Calcium Booster is a fast dissolving granular treatment designed to raise calcium hardness levels in spas and hot tubs. Proper calcium hardness is essential for protecting spa surfaces and equipment, especially in low calcium or softened water where corrosion and etching can occur. When calcium levels are too low, spa water becomes aggressive and can damage heaters, pumps, plumbing, and acrylic surfaces. Sirona Calcium Booster corrects this
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