R-0013 (CYA Reagent) Expiration Date


Silver Supporter
Mar 17, 2019
Chandler, AZ
I'm out of the three 2-oz bottles of CYA reagent that came with my K-2006C test kit. So I ordered an 8-oz refill bottle from TFTestkits.net. However there was no expiration date on the refill bottle, but my original reagents in the 2-oz bottles had an expiration date. Should I be concerned? Does R-0013 expire?


Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
Laughlin, NV
Not really. Unless it is contaminated. Freezing it might mess it up. It is the most stable reagent in pool water testing.