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Hardness Plus


  • 1KG bottle – Hardness Plus

Rapid dissolving granules for increasing the hardness of your water in your hot tub.

Hardness Plus increases the quantity of Ca2+ ions in water making it harder.

It has no effect on PH.

You will be able to find out your water hardness with a quick search of your location or ask your water provider.

Always follow the instructions on the product.

Please note that shipping is calculated at check out. Standard charge is £10, we offer free shipping on orders over £59.