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      BioGuard Spot Kill
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      • BioGuard Spot Kill

      • $22.99
      • *This Product Has Been Discontinued* BioGuard Spot Kill has been discontinued and replaced by BioGuard Super Soluble — the same active ingredient (99% sodium dichloro-s-triazinetrione dihydrate) in an updated formula. If you've used Spot Kill in the past, Super Soluble will work the same way for sanitizing and spot-treating algae.   Especially effective on black algae growth Highly concentrated chlorine…
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      Poolife Defend+
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      • Poolife Defend+

      • Original price was: $41.99.Current price is: $36.99.
      • Poolife Defend+ not only treats and helps prevent green, black and yellow algae but it also clarifies your water. This algaecide is non foaming so it can be used in pools with attached water features and hot tubs.
    • BioGuard Back Up 2 Algaecide
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      • BioGuard Back Up 2 Algaecide

      • $29.99
      • Non-staining formula prevents a wide variety of algae Powerful wetting agent and surfactant help it work into cracks and crevices Not appropriate for pools with attached spas or water features Can be used with the 3-Step BioGuard Care System
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      BioGuard Algae Complete
      Select options This product has multiple variants. The options may be chosen on the product page
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      • BioGuard Algae Complete

      • From  Original price was: $41.39.Current price is: $35.99.
      • BioGuard’s most complete and best performing algicide Dual active ingredients to both prevent and kill algae Non-staining and non-foaming Can be used with the BioGuard 3-Step Care System