| Pack Size | 1 Pack |
|---|---|
| EPA Registration Number | 3525-101-65803 |
Check the listing for details. Super Shock for Synergy Sanitizer (Various Packages). Condition: New. Listed at 19.91 USD. 68% Calcium Hypochlorite Super Shock Synergy Sanitizer - 24 x 1 lb Bags. This shock will raise your free chlorine levels, water hardness, and pH levels giving you crystal-clear water for a more enjoyable swimming experience.
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