Works really well. I have used this for 3-4 years.

This shock is fast dissolving and works great.

Works just as good for the higher priced shock

Shock did what it suppose to do.

This item was simply shocking.

We have used this shock since Sam’s started carrying it. It lasts & works very well.

I always use this brand Of shock, a great value

Not keeping pool clear. will have to return to store

Great value- does the trick!

Price is lower than last summer, but 20 one pound bags instead of 24.