These rapid dissolving granules have been formulated to increase pH levels in your hot tub or pool. Maintaining the correct pH in your water is essential as failure to do so can result in bather discomfort and damage to your hot tub or pool. *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.
