Sirona Calcium Booster Spa Hardness Increaser Filter Parts or difficult to operate due

or difficult to operate due to age

No CYA Added – Contains no cyanuric acid

Reduced emergency equipment issues

not a replacement part for an existing cleaner

Sirona Calcium Booster Spa Hardness Increaser Filter Parts or difficult to operate dueSirona 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