Alkalinity 7.5 Pounds by GLB

The Alkalinity 7.5 lbs (Alkalinity Up) is made by GLB, and significantly increases the alkalinity of pool water to prevent the pH level from fluctuating. This product is compatible with chlorine, bromine, ozone, salt water chlorine and biguanide sanitizing systems. In addition, it is recommended to maintain the total alkalinity of your pool water between 75 – 125 ppm.
When using Alkalinity Up, please make sure to handle with care.


  • 7.5 lbs Bottle.
  • Control your alkalinity directly.
  • Dry Compound.