Q-Shock II
Q-Shock II is a fast-acting, quick dissolving multi-purpose granular that sanitizes, clarifies, prevents algae, and shock treats your pool. Its highly effective formula is convenient, easy to use, and won't over stabilize your pool water. Q-Shock II can be used on all pool surfaces, does not contain cyanuric acid, and leaves no residue. 

Features:
- Quick dissolving
- Contains 73% calcium hypochlorite
- Kills bacteria
- Controls algae
- Will not over stabilize your pool water
Convenient and easy to use