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Jack's Magic After Shock is a great way to quickly reduce your chlorine levels after shocking your pool
1-quart bottle size: Compact
no lubrication is required during installation
Dolphin 2x2 Gyro
Intended for recreational swimming water
Regal 1 qt Bottle Poly-Algaecide 30 12 per Case us-seal Jack's Magic After Shock isNon foaming, non metallic 30% strength polyquat algaecide. Effective in preventing the growth of green, black, and mustard algae. Ideal for all around use in pools with attached spas and water features. Algaecide should be used on a regular basis.
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