HTH pH Up Balancer 5 Lb. (Pack of 3)

pH increaser that helps balance pH levels in swimming pool water, improving both the quality of the water and the comfort of your swimmers. Not only ensures that your chlorine is working more efficiently, but it helps prevent corrosion of pool surfaces as well as significantly reduces skin and eye irritation. Great for all pool types, including vinyl-lined pools and salt water systems. Online purchases are in packages of 3.