These are great tasting and I'm definitely drinking more water by using this system. The problem I have with buying them from Walmart online, is the price changes. I bought it for one price and for about a week or two the price went down and then it shot back up.

They are so delicious tasting and saves you money in buying flavored drinks. I can empty and fill mine at least 4/5 times before it goes empty. That's almost a 6pack of flavored water from the gas station @ $3.50 taxi l each.

Enjoyed all the different flavors. The price on the 6 pack was very good also. Would recommend

These are a great price in comparison to others and with good flavor. Not too sweet though I drink mine on a 3.

brilliant idea

Good for what they are.

Cirkul product. No issues.

It's a nice product but the refills are too expensive and the favor does't last long.

me and my son actually got sick on a few flavors, and we both got dehydrated. i like the concept, but you're better off after emptying the cartridg, putting in a drink that actually works.

Doesn't last long. The package shows that it flavors the equivalent of 6-20oz bottles. It's more like 3-20oz.