DryTec 1-1901-24 Calcium Hypochlorite Chlorine Shock Treatment for Swimming Pools, 1-Pound, 24-Pack
Brand: DryTec
24 bags (1-pound each)
Fast-Acting Quick-Dissolving Swimming Pool Sanitizer
Kills bacteria, controls algae, and destroys organic contaminants in pools
68% calcium hypochlorite
Recommended Dosage: 1 pound per 10,000 gallons of water