I buy this about 3 times a year. We are lucky to have a huge pool; however, it does need lots of chemicals. I save about $20.00 each time i buy it

This was the best deal we could find. A local pool supply company wanted $200 for 25 lbs! Don't wait, get your granules now!

Cleared my pool at season open within a week. Must watch water chemical balance. After that, controlling well with tablets & mtce level algicide.

I always buy this at the store, but had to go to the website and have it delivered. No big deal and it is always cheapest around.

Great product. Had it delivered with my plus membership. Sooo much easier than driving to the club, putting it in my car the lugging it to the shed.

Great price, also quality product, gets the job done unlike other pool chemicals. Members mark keeps your pool clean and looking great!

I have been using this product for years and it performs very well. Cost less than pool store both local and mail order.

Great all around bulk shock. Cleared up a pool after a few days of heavy rain overnight back to clear

The Member's Mark granulated chlorine is good quality and keeps our pool sparking clear! We have used it for years without any issues.

This is chlorine and not SHOCK.. I searched Shock and ordered it a but it's unusable chlorine. It's granulated so it does not work in a normal pool. Above ground should be fine.