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Spaguard Shock / Calcium Hardness Increaser

Hot Tub Calcium Hardness Increaser, 1-Quart

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$ 15.03   $10.52   save 30%
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Ideal Hardness Level

The ideal hardness level for your water is 200-400 ppm. This ensures optimal performance for your water needs, enhancing quality and efficiency.

Quick Hardness Increase

Adding just 1 ounce of our product to 500 gallons of water increases the hardness by about 10 ppm. This quick and effective solution is designed to meet your specific hardness requirements.

Easy to Use Liquid Product

Unlike granular alternatives, our liquid product is easier to use. It dissolves quickly and disperses evenly, making application a breeze. This makes it perfect for both professional use and quick DIY adjustments.

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