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

Fast delivery and product was as advertised

Great delivery

Works very well in our pool. This is the 3rd year we have used it and we are very satisfied.

Great product and fantastic value!

Chlorine shock

Top quality shock. Keeps water crystal clear!

Great product

Poolhelper

This shock dissolved quickly and completely!

Great product!

Needed product, readily available at Sam’s!

Excellent service

Works great

Pool needs

Good buy

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.

Excellent stuff, glad to have come back to it

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

Member photos