Calcium Chloride flake for increasing water hardness & Total Alkalintiy plus (TA+) for increasing Alkalinity levels in pool and hot tub water. Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 20 40 All Balancing & Testing, Calcium Hardness Increaser, Water Hardness & AlkalinityCalcium Hardness Increaser 1kg £10.50 Includes VAT & FREE Shipping CrystalClear® Calcium Hardness IncreaserAdd to cart Alkalinity Increaser (TA+), Balancing & Testing, Water Hardness & AlkalinityTotal Alkalinity Increaser (TA+) – 1kg £9.95 Includes VAT & FREE Shipping CrystalClear® Total Alkalinity Increaser - 1kgAdd to cart
