BioGuard 4-Way Water Test Strips - Walmart.com
2021-6-22 · The BioGuard dip and read 4-way test strips are a quick and easy way to test for total bromine, free chlorine, pH and total alkalinity. At the start of a new pool season or with new pools or spas it is important to test the water 4 to 5 times per week.BioGuard & SpaGuard 4 Way Spa or Swimming Pool Test Strips 50 Test Strips per bottle
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