does this device have a shelf life or expiration date?
233357
There is no expiration date listed on this product. All research indicates that the effectiveness depends upon the amount of water filtered rather than the date used. The product claims it is good for 25 gallons. Further research indicates that this varies depending upon the quality of the water being filtered.
233358
No expiration date was on the packaging or the filter. But it should be noted that NduR uses a ceramic filter rather than the common charcoal filters that are prone to deterioration.
2154097
Richard, I don't know about a shelf life. This stuff is so good that it is never around here long enough to know. It sure is an outstanding product.
1707193
Mine has lasted over a year with no difference in effect. No expiration date that I can see.
1302116
Wow... I have no idea... you're asking what the "shelf life" of the battery is... probably only the manufacturer could answer that...
1603372
Yes, there is an expiration date. Mine was almost a year from date of purchase.
2270514
The package I have received had 1 year expiration date. So, assuming it wasn't very old, the shelf-life of this product is probably 12-18 months.
650421
My experience is that these batteries last about 2 years in use. I don't know about shelf life but I wouldn't take the chance on it.
614674
The supplier says it has a one year shelf life, officially, but is usually fine for a much longer period of time if kept in a cool, dry place. Make sure your seal is in tact upon arrival and if it isn't, let them know, they will replace it. There is no expiration date on the container that I have, though. They are very good at communicating in a timely manner, so if you contact them, you can expect a prompt reply and quick resolution to any concerns.
1764752
I am not sure about expiration. It lasts for quite long time. Mine still works until now and I bought this long time ago.
1607206
I'm not sure that I have ever seen an expiration date on mine. Have you purchased it yet? If so, look on the package. If not, I wouldn't worry about it expiring. It is sealed really well.
278506
Yes, there is a shelf life. The box I bought in May, 2013 has an expiration date of 02/2017. Since each tablet is foil wrapped, they should last that long.
990960
Don't know the shelf life. You might want to ask the manufacturer. I kept it refrigerated after I opened it.
755662
Hi Ryan,The shelf life for this product is up to 25 years under the storage conditions that you mentioned. Please let us know if you have any additional questions.best regards,Adrienne MahoneyEarthtech Products
706037
I just looked at the box it comes in, and no, there is no expiration date. ;-)
2024707
No, there is no expiration date. I asked the retailer where i got mine from
1443581
I did not see an expiration date but I use mine faithfully everyday so it's gone before it would expire! Maybe check the website, I honestly don't know.
2164146
I don't see an expiration date on the stick. I have had one in my contingency bucket for over a year and it still works as if I bought it yesterday.