When I learned about this alternative I had just purchased a 6 month supply (which is really 3 I have 2 tridents). And since I am testing way more frequently as I chase a high PH, I find myself needing more reagent fluid already. I went and looked at ABC but they are $80 for 6 months vs $93 for Trident branded. That’s not a big enough delta for me to stray away from an OEM. I thought the delta was going to be meaningful. The way these were talked up, I would have guessed they were half the cost of the OEM. Maybe I am missing something.