Clorox POOL & Spa Shock XtraBlue 36006CLX Pool Chemical, 1 lb Bottle, Granular, Chlorine [SKU: ORG7187438]

Kills and controls green, black and mustard algae, Kills bacteria, Clears cloudy water and removes swimmer contaminants such as body oils, sweat, lotions and urine, Reduces chlorine odor and eye irritation, Improves filter performance, Won't impact pH, Treat and swim in 15 mins, test-free chlorine before swimming to ensure it does not exceed 4 ppm, 6-in-1 shock with algae-killing crystals. [QTY/UOM: 6 / 1PK]