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Swimming Pool Care: Calcium Hardness Up Chemical for Surfaces and Liners (4 Lbs)

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$ 12.98   $9.61   save 26%
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About this item

  • BENEFITS: Raise the calcium hardness of your swimming pool water to protect your pool surfaces and equipment from harm
  • COMPATIBILITY: Pool care chemical works with all swimming pools
  • RAISES CALCIUM HARDNESS LEVELS: Helps prevent swimming pool water from becoming corrosive
  • PROTECTS & PREVENTS CORROSION: Protects pool liners, metal, and plastic surfaces as well as equipment from damage
  • YOU'RE ALL CLEAR WITH HTH: For best results, use HTH 6-Way Test Strips weekly to test, balance and maintain calcium hardness levels between 200 and 500 ppm

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