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Suncoast Shock For Vinyl & Concrete Pools requires no pre-mixing, dissolves quickly with no residue, and won't fade your pool's vinyl liner. Excellent for routine pool shock treatments throughout the season and can also be used in concrete pools.

  • 56% available chlorine, 99% sodium dichlor. 
  • Sold in 1 Lb. Bag

Because of its preventative effects, you still need to apply pool shock treatments even when pool water looks clear and chlorine is consistently used.