No Expiration Date On TFTkit refills?


Gold Supporter
Bronze Supporter
Nov 30, 2019
Pawleys Island, SC
I just ordered new CYA reagent and CYA standard from TFTkits and none of the containers show an expiration date. Why's that? I expected that they'd be dated. How would one know how old they are and when they expire?


Well-known member
Apr 21, 2020
Apex, NC
That's a good question on expiration dates. The R-0013 Taylor bottles do have dates on them and the TFT reagents are the same as Taylor. I wonder if it's some obscure law that certain items need dates. I got a salt grinder from Costco with an expiration date on it. Take millions of years old salt, put it in a container and it now expires.

Brett S

Well-known member
Mar 15, 2019
I was curious about this as well and emailed them about it. This is what they told me:

I guarantee all reagents for a year, so if there is no color change or abnormal reading that you get, I will replace that reagent. I am very small and only order what I will ship.