Caribbean Spa Calcium Hardness Increaser for Hot Tubs- 16 oz.

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.

For best results use with the Caribbean Spa chemical line. Always follow label directions before using any chemicals in pool or spa water.