I have been using Member's Mark for over 5 years with no problems, same quality as your typical pool supply stores at much cheaper prices. Not sure why others have left such bad reviews... maybe it's the competition?

This product sent our stabilizer through the roof, have partially drained twice, but still very high, we'll have to totally drain our pool. Buyer's beware!!

The chlorine is good, but shrinkflation got it. Sam's claims it's a new lower price,but in reality it costs more because it went from 50 pounds to 40 pounds. I remember when 50 pounds cost less than $100 a few short years ago.

It's hard to find a good buy for chlorine tabs, but Sam's had one. This was a hard price to beat and the quality is top notch. So glad that my club is carrying it again.

Best price on chlorine that I can find compared to other places online right now. Have not had to use it yet, but I’m sure it will be fine. Almost all the stuff we gotten from Sam’s club been good. Giving it 4 stars since I haven’t used yet.

Been using this chlorine for years. Finally ran out of the bucket from a year ago & luckily caught it in stock @ my local club. Even with the “chlorine shortage” going on right now, this is still the best value out there.

This is a great product. However, it used to be 50 pounds. Now it is 40 pounds. We are actually paying more for 20% less product. Prices on chlorine have skyrocketed since the pandemic.

These used to be the best value anywhere. For the past 3 years, the price keeps raising and the amount of tabs have been reduced. Stop raising the price!!!!

Group Purchased a few buckets for the pool owners on the street. Beats the pricing our local store overcharge for. With the shortage, we doubled down.

The price point is awesome and it's not full of weird stuff and doesn't have high cya so it works better. It's in the same level as the pool company ones at half the price. The individual wrapping is nice because I can grab a few to fill the float and not have the chlorine smell stuck to my hand. Also awesome that it was on an extra special bonus for a new store.