HTH 52038 Advanced Green to Blue Chemical, 7.2 lb, Powder, Chlorine, White

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About This Product Fight a severe algae bloom and transform your swimming pool water from green to blue in 24 hours with this easy-to-use system. Highlights Simple 2-step system Si mple 2-step system Pack I is a strong algae fighting pool shock with cal hypo Pack II is a powerful flocculant that drops particles to floor for easy vacuuming This cal hypo-based formula transforms water from green to blue within 24 hours without adding cyanuric acid to prevent overstabilization or chlorine lock For excellent results, use with HTH® six-way test strips to test and balance your swimming pool water twice weekly This product is effective for all pool types that can vacuum to waste (GREEN - BLUE ADV SHOCK SY – 9114661 – 52038R) Show more