Strong Base Anion Resin for Tannin Reduction - 1 lbs Max Water Reverse Osmosis RO Filter, compatiable with Refillable Anion Resin water filters for RO Reverse Osmosis Systems

Works perfectly for our application. Manufacturer was responsive to technical questions. Overall very good!

Total Waste Of Money

So, I used this differently than intended, tossed a handful at a time into my aquarium filter to reduce the tanin levels. Works great for that, and let me moderate the tanin levels well. (300 gallon Black water amazon river tank)

bought this to make my own D.I. filter , its a fair price , especially when you don't want to. buy a 50 to 100lb bag for hundreds of dollars

Works great for the research I'm doing for my undergrad. Wish it had certain data information that would have been helpful before I had to redo a couple experiments. I ended up having to do a little more work to figure out how much I needed to use and what not, but still works great.