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Member's Mark Quick Dissolving Shock 20lb with 10 Test Strips

Have been using this shock for 4 years now...works great!

Works Perfect!!!

Best price for pool shock - delivered to my door!

Shock Delivered free!

Love Sams products

Quality without the name brand price.

Works the same as the brand we've used for years at a price reduction.

Save $$$

Great pool shock

Great price on bulk 1lb pkgs. Dissolves quickly.

Shocking Value

This is good shock at a reasonable price. I have been using it for years!

Good stuff, great price!

I was shocked at the price increase over last year.

Wow, what a price increase!!!

The best shock around and the highest concentrated

Started using in June and could not figure out why algae was worsening. Should have read the reviews. The more I added the worse the algae became. Will be returning it.

Made algae worse

Works very well, used it for a few years but due to COVID, got into using calcium hypochlorite type stuff, big mistake. After a complete cluster on opening this year, finally got the pool looking right by abandoning Calcium based shock and going back to this stuff.
The only downside is the incredible price rise over the last 2 years, way beyond what I would have expected even given our rampant inflation.

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