<p>The Nature2 Mineral Purifier is a purifier cartridge that slips inside the spas filter and last four months. It assists the sanitizer by reducing the amount of sanitizer required to keep the spa clean. Use in conjunction with bromine or chlorine, and a non-chlorine MPS shock. When using the Nature2 Mineral purifier you can safely reduce the bromine level from 3ppm to 0.5pp. It will dramatically reduce the amount of bromine sanitizer needed to keep the spa water clean and clear. As water is filtered it flows through the Nature2 purifier cartridge, where a non-electrical reaction takes place that "activates" oxygen to kill bacteria, algae, and viruses. Compatible with ozone and bromine. Assures an odor-free spa. Significantly improves look &amp; feel of water. Simplifies water balance &mdash; it's unaffected by heat. Lasts four months.</p>

<p>Replacement blue mineral cartridge for the Spa Frog floating and in-line systems that helps fight algae and bacterias, while also clarifying the water. The mineral cartridge should be replaced once every four months when the spa is being used often by swimmers.</p>

<p>Spa Frog Refill Kit contains 4 pre-filled mineral and bromine cartridges that snap into a reusable floating holder and works in any spa. The SPA FROG® Floating System transforms any spa into the perfect environment for soothing relaxation with up to 50%* less bromine than standard a bromine spas. Cartridges are easily adjusted to meet the sanitizing needs of virtually any size spa. Replace the mineral cartridge every 4 months when you drain and refill your spa. The bromine cartridge will last 2-4 weeks depending on use. Contains 3 Bromine and 1 Mineral Cartridge per kit. </p>

SPA FROG Floating System uses pre-filled mineral and bromine cartridges that snap into a reusable floating holder and works in any spa. The SPA FROG Floating System transforms your spa into the perfect environment for soothing relaxation with up to 50%* less bromine than standard bromine spas. Cartridges are easily adjusted to meet the sanitizing needs of virtually any size spa. Replace the mineral cartridge every 4 months when you drain and refill your spa. The bromine cartridge will last 2-4 weeks depending on use.

<div class="product-description"> <h2>Description</h2> </div> <div class="product-bullet-points"> <ul> <li>Lowers spas pH level</li> <li>Uses mineral salts</li> <li>Leaves behind a fresh scent</li> </ul> </div> <hr class="bs-docs-separator" /> <div class="product-directions"> <h2>Directions</h2> <h3>To Lower pH</h3> <ol> <li>Measure the pH of the spa water by using a Brilliance for saps Test Kit or Test Strips.</li> <li>Use the table below to determine the correct amount of Brilliance for spas pH Decreaser.</li> </ol> <table> <thead> <tr><th>Volume of Water</th><th>pH 7.2-7.6</th><th>pH 7.6-7.8</th><th>pH 7.8-8.0</th><th>pH 8.0-8.4</th><th>Above pH 8.4</th></tr> </thead> <tbody> <tr> <td>200 gal.</td> <td>Not required</td> <td>0.5 tsp.</td> <td>0.75 tsp.</td> <td>1.5 tsp.</td> <td>2 tsp.</td> </tr> <tr> <td>400 gal.</td> <td>Not required</td> <td>0.75 tsp.</td> <td>1.5 tsp.</td> <td>3 tsp.</td> <td>3.5 tsp.</td> </tr> <tr> <td>800 gal.</td> <td>Not required</td> <td>1.5 tsp.</td> <td>3.0 tsp.</td> <td>6 tsp.</td> <td>7 tsp.</td> </tr> </tbody> </table> <ol start="3"> <li>Add Brilliance For Spas pH Decreaser to the filter skimmer with the spa circulation system running.</li> <li>Leave running for 30 minutes and recheck pH. Add additional Brilliance for spas pH decreased if required.</li> </ol></div> <hr class="bs-docs-separator" /> <div class="product-ingredients"> <h2>Ingredients</h2> <p><strong>Sodium Bisulfate:</strong> 92%</p> <p><strong>Constituents Ineffective As Adjuvants:</strong> 8%</p> </div>