ShockWave® Cal-Hypo Pool Shock 50 lb, Fast-Acting Chlorine Sanitizer | 25241 Hayward AstroLite Lights or residential settings

or residential settings

Prevents damage from dirt

retaining walls

Its ultra-compact and lightweight design facilitates faster and easier installation

ShockWave® Cal-Hypo Pool Shock 50 lb, Fast-Acting Chlorine Sanitizer | 25241 Hayward AstroLite Lights or residential settingsShockWave Cal Hypo Pool Shock 50 lb, Fast Acting Chlorine Sanitizer 25241 ShockWave 50 lb Cal Hypo shockfast dissolving, powerful sanitizer. Controls algae and bacteria for clean, clear pool water. Key Features High strength 68% calcium hypochlorite formula Fast dissolving granules for immediate sanitizing power Eliminates bacteria, algae, and organic contaminants Will not add cyanuric acid to the pool Suitable for most pool surfaces Economical 50 lb