First Choice No-Chlor Shock-Oxidizer, 1 lb Bag

Non-chlorine oxidizing granules, quickly destroys bather waster and other contaminants that can cause odors, eye irritation and cloudy water. Swim again in 15 minutes.

Note: Non-chlorine shock will register as Combined Chlorine or as Free Chlorine depending on the test kit, but it is not a chlorine product.