Granular or Pellet?

[snarkys]

Originally Posted by kaboom

I wonder how the 2x affectiveness is measured? If that's a true claim, you would think that it would be flying off the shelves. Really I am not looking something that will out perform Rowaphos, just something cheaper with equivalent results. Question I need clarification is not the different grades of GFO but rather the partical size, granular or pellets. Is one more absorbent and/or longer lasting?

It is "ruffly" twice as effective as the other two . About 1.9 times the typical granules.

The effectiveness isn't a number we just came up with : )
This products main purpose is for removing arsenic from drinking water for human consumption. It is highly regulated and tested for both quality and effectiveness. The products ability to remove phosphate is closely tied to amount of iron oxide it contains. The HC product is about twice as heavy/dense as the other two and therefor contains around twice as much iron oxide for the same volume.

all that said, it is about twice as expensive as well. The main benefit in my eyes is that it is much harder and less prone to attrition and the creation of fines (dust) in both transport around the world to your home and inside your reactor.