Proper calcium hardness levels help prevent corrosion of equipment and etching of spa surfaces. Use Calcium Hardness Increaser to raise calcium hardness to the proper level. For areas with high calcium in the source water, use Stain & Scale Control to prevent formation of scale. 75% - 97% Calcium chloride, 1% - 2% Sodium chloride, 2% - 3% Potassium chloride, 0% - 7% Water, 0% - 1% Strontium Chloride.
Spa Essentials 32534000 Calcium Hardness Increaser Granules for Spas and Hot Tubs, 12-Ounce
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$46.64
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$23.32
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Spa Essentials 32534000 Calcium Hardness Increaser Granules for Spas and Hot Tubs, 12-Ounce
- SKU:
- HZ91730
- UPC:
- 017541646116
- Condition:
- New
- Availability:
- Free Shipping from the USA. Estimated 2-4 days delivery.
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Spa Essentials 32534000-02 Calcium Hardness for Spas and Hot Tubs -2 Pack- 12 oz
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$76.48
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$38.24
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Spa Essentials 32534000-04 Calcium Hardness for Spas and Hot Tubs -4 Pack- 12 oz
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$112.66
Now:
$56.33
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Spa Essentials 32518000 pH Increaser Granules for Spas and Hot Tubs, 18-Ounce
Was:
$111.88
Now:
$55.94
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$82.88
Now:
$41.44
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SpaGuard Spa Calcium Hardness Increaser - 12 Ounce
Was:
$65.88
Now:
$32.94
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Spa Essentials 32519000 pH Decreaser Granules for Spas and Hot Tubs, 22-Ounce
Was:
$112.28
Now:
$56.14
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Hot Tub Things Calcium Increaser 32 Ounce - Prevent Corrosion in Your Spa
Was:
$102.52
Now:
$51.26
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Spa Essentials 32518000-02 pH Increaser for Spas and Hot Tubs, 18-Ounces, 2-Pack
Was:
$109.80
Now:
$54.90