Caribbean Spa Calcium Hardness Increaser for Hot Tubs 16oz.

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Original Price $7.49
Current Price $6.74

Prolong the life of your spa with Caribbean Spa Calcium Hardness Increaser for Hot Tubs. Caribbean Spa Calcium Hardness Increaser prevents foaming and equipment corrosion in hot tubs. Maintain a balanced calcium level in spa water to prolong equipment, filter, plumbing, and acrylic life. Weekly testing is recommended to balance all chemicals in the spa water.

  • Prolong spa life
  • Reduce foaming, No cloudiness
  • No corrosion to equipment
  • Easy to use granular
  • Made in the U.S.A.