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  1. Testallwater Poollab Calcium Hardness Liquid Reagents Kit

  2. New Certikin Calcium Hardness Tablets (250Btl) (Tthrd250b) 5060228498411

  3. PoolLab Calcium Hardness Liquid Reagents Kit

    1 Dropper bottle of 20ml Calcium hardness 1. 1 Dropper bottle of plus 20ml Calcium hardness 2. Good for 50 tests.

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  4. Testallwater Test All Water Calcium Hardness Increaser, 1Kg

  5. Palintest Calcium Hardness (Calcicol) 50 Tablets

  6. Palintest Calcicol Calcium Hardness 250 Tablets

  7. 5kg - Calcium Hardness Increaser - Hardness + / Calcium Raiser - CrystalClear®

    Effortlessly maintain the ideal calcium hardness level of your pool with the 5kg Calcium Hardness Increaser by CrystalClear®.

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  8. Testallwater Test All Water Calcium Hardness Increaser, 1Kg

  9. Lovibond Calcium Hardness Tablet Count Bottle 250 Tablets

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  10. Plastica Relax Pro Calcium Hardness Plus 25Kg

  11. Lovibond Calcium Hardness Tablet Count Bottle 250 Tablets

  12. Palintest Calcium Hardness 250 Tablets

    1 Box containing 250 calcuim hardness tablets.

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  13. Testallwater Blue Horizons Calcium Hardness Raiser 5Kg

  14. Lovibond Calico H - Calcium Hardness No 1 & 2 - 100 pack

    New 04/28 expiry date. Lovibond Calico H - Calcium Hardness No 1 & 2 - 100 pack Pack Size: 100 (per box)

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  15. Hanna Instruments-720 Calcium Hardness Handheld Colorimeter - CheckerHC

  16. Spa Hardness + Calcium Plus Increasing Aquasparkle Hot tub Pool 1kg

    (AquaSPArkle Hardness Plus will rapidly increase the calcium hardness when levels fall below 100mg/l (ppm). 1kg Spa Harness Plus Hot Tub Hardness +. 1) Test the calcium hardness of your hot tub water.

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  17. Test All Water Spa Calcium Hardness Plus (Calcium Chloride) 1KG

  18. Sweet Spa Solutions Calcium Hardness Increaser 5kg - Swim Spas, Hot Tubs,...

    Sweet Spa Solutions Calcium Hardness Increaser 5kg - Swim Spas, Hot Tubs, Swimming Pools and Spas. This product should be used to raise the calcium hardness levels in Spa, Hot Tub and Pool water. If there is insufficient levels of calcium in the water it may be difficult to balance the water and grout loss within tiled spas may occur.

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  19. Palintest Calcium Hardness Tablet Count Bottle 250 Tablets

  20. Aquasparkle 1kg Spa Hardness + Calcium Plus Increaser Raiser Hot tub Pool

    Contains: Calcium Chloride - 1kg Compatible with all spa sanitizers. Next adjust the PH and finally, if required, adjust the Calcium Hardness Granular Formula. 1kg Hardness Plus. Spa Hardness Plus. Hardness levels should be maintained between 100 - 200mg/l (ppm).

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