Cal Up – Cal Hardener 500g

Cal Up – Cal Hardener 500g



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Cal Up will increase low water hardness. Increasing the hardness of your spa water is key to preventing etching, pitting and corrosion of spa surfaces and metallic components. This is where Poppit Spa Cal Up – Cal Hardener comes in – this product increases water hardness in one easy dose, helping enhance the life of your spa’s surfaces and equipment.


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