SpaPure Alkalinity Increaser 16 oz (Pack of 2)

SpaPure Alkalinity Increaser is a fast-dissolving formula designed to raise and stabilize total alkalinity in spas and hot tubs. Maintaining proper alkalinity helps prevent pH bounce, protects spa equipment, and improves overall water balance for a more comfortable soaking experience.

This 16-ounce container is ideal for routine water maintenance and works with all spa and hot tub types, including acrylic, fiberglass, and vinyl surfaces. Regular use helps extend the life of heaters, pumps, and seals while supporting effective sanitizer performance.

Key Benefits:

• Raises low total alkalinity in spa and hot tub water

• Helps stabilize pH levels and reduce pH fluctuations

• Protects spa surfaces and equipment from corrosive water

• Fast-dissolving granules for quick results

• Compatible with chlorine, bromine, and mineral systems