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

Shock did what it suppose to do.

Iv been using this for years , it does a good job

This item was simply shocking.

Works just as good for the higher priced shock

has richler which promotes cyanuric acid.

Cost-effective way to shock your pool. Arrived quickly.

Product works great just too expensive

It’s 100% shock many outlets sell shock but Sams is the real deal at the best price

This shock is fast dissolving and works great.