HTH Super Shock and Swim for Swimming Pools, 16-Pack

by HTH
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ITEM# 21803975
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ITEM#: 21803975

Destroys organic contaminants and restores free available chlorine to the water. Shock treating your pool weekly is important because it protects you and your family from bacteria and organic contaminants. Super chlorination or shock treating removes chloramines, which cause eye irritation and "chlorine" odors from the pool water by adding free available chlorine (FAC). We suggest shocking at the same time and day each week. Sundown is the best time to shock your pool because the chlorine can work without fighting the sun's UV rays. Shocking after sundown also gives chlorine more time to restore water clarity. In some cases, you may need to shock more than once a week.


Dimensions 3 x 6 x 10
Warranty None
Model Number 51425
Country of Origin United States
  • Verified Purchase

    This user earned $4.00 in rewards for writing this review.Learn More

    This product performs miracles with my pool. I no longer worry. I just pour it on the deep end of the pool and within 10 hours my pool is clear.

  • Great product
    Verified Purchase

    Much more cost effective than buying these individually and the convenience of having a summers worth delivered to the house all at once was well worth it. I loved that I spent the summer in the pool and not the pool supply store.

  • Verified Purchase

    This lasted half the summer and saved a lot of money by buying it in bulk. Will definitely order next year

  • Verified Purchase

  • Verified Purchase

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** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.