Spa Frog @ease Replacement SmartChlor Chlorine Cartridge - 3 Pack
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<b>[Product Information]</b><br>
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<li>Low-chlorine spa sanitizing cartridge maintains a consistent 0.5 – 1.0 ppm free chlorine level at all times</li>
<li>Shock only once a month and use up to 75% less chlorine</li>
<li>Floats in spa water and flips over when empty, indicating the SmartChlor cartridge needs replacing</li>
<li>Lasts 3-4 weeks in spas up to 600 gallons</li>
<li>Designed for use with Spa Frog @ease Mineral System - Mineral Cartridge not included</li>
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