BioGuard Basic Shock (1 lb) (24 Pack)

BioGuard Basic Shock 1lb - 24 Pack Effective Chlorine Shock for Swimming Pools 1lb per 12,000 Gallons BioGuard Basic Shock 1lb - 24 Pack Effective Chlorine Shock for Swimming Pools 1lb per 12,000 Gallons BioGuard Basic Shock 1lb - 24 Pack Effective Chlorine Shock for Swimming Pools 1lb per 12,000 Gallons