The strongest Cal Hypo shock product in the industry! Dissolves quickly and completely to combat algae and bacteria and keep pool water sparkling clean and clear with less work.
- Step 2 of the MPT Extra™ System
- Shock treat at least once a week. For best results always ensure pH is correct before shock treating your pool. No need to pre-dissolve.
- Good for all pool surfaces.
Active ingredient: 78% Calcium Hypochlorite (Cal Hypo)