Spa World Calcium Increaser 500gm

For raising the hardness level of your spa water

SKU: 124101

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Spa World Calcium Hardener 500g

For use with chlorine and chlorine free systems to raise the hardness level of spa water

  • Increases calcium hardness levels
  • Prevents corrosive water
  • Protects spa equipment from oxidizing and rusting quickly
  • Eliminates staining of surfaces


Manufacturer: Spa World

Model: 124101

Size: 500 grams

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Download MSDS Sheet

Any advice or suggestions above, including but not limited to instructions and dosing rates are intended to be a guide only. Spa Store and its staff recommend you read the full instructions on all chemical containers. We will not accept responsibility for the use of these products.

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Selection Tips

  • Check your current water treatment type.
  • Is your system chlorine based, non chlorine or Sanisol?
  • Check your pool volume.

Still not sure this is the correct chemical? Contact our chemical experts


SKU 124101
Model # 124101
Shipping Weight 0.5000kg
Shipping Width 0.100m
Shipping Height 0.130m
Shipping Length 0.100m
Shipping Cubic 0.001300m3
Chemical Brand Poppits
Chemical System Chlorine System
Chemical System Chlorine Free System
Chemical Type Water Balance


Hardnet chemical

By: on 12 March 2013
Chemical seems to work acording to the water test strips.

Write a product review

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