Calcium Chloride a Chemical to help correctly balance swimming pool, spa and hot tub water by increasing water hardness levels. 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
