HTH™ Pool Care Green to Blue Advanced: Blue Pool Shock
HTH™ Pool Care Green to Blue Advanced Shock is a two-part pool shock system engineered for certainty when blooms strike.
- Pack I delivers Cal-hypo shock to kill bacteria and fight algae;
- Pack II is a powerful flocculant that drops debris for easy vacuuming.
- Together, they help transform your swimming pool from green to blue in as little as 24 hours without adding cyanuric acid (CYA) that can lead to chlorine lock.
- Safe for vinyl liners and ideal after storms or heavy use, it’s fast, simple, and proven.










Description
HTH™ Pool Care Green to Blue Advanced Shock is a two-part pool shock system engineered for certainty when blooms strike.
- Pack I delivers Cal-hypo shock to kill bacteria and fight algae;
- Pack II is a powerful flocculant that drops debris for easy vacuuming.
- Together, they help transform your swimming pool from green to blue in as little as 24 hours without adding cyanuric acid (CYA) that can lead to chlorine lock.
- Safe for vinyl liners and ideal after storms or heavy use, it’s fast, simple, and proven.






















