These rapid dissolving granules have been formulated to reduce pH levels in your hot tub or pool. Maintaining the correct pH of your spa water is essential. Failure to do so will result in bather discomfort and damage to your spa. Ideal conditions are between 7.2 and 7.6. *Due to the hazardous ingredients and transport restrictions, we are unable to deliver this chemical product to Northern Ireland, Scottish Highlands, Channel Islands, Isle of Man, and the Isle of Scilly.
