Phat Filters are carbon beds are 2″ thick fulling with the very best carbon on the market with the independent lab test numbers to prove it. A high adsorption yield number equals a greater capacity to adsorb odors, which in turn means the filter is of higher quality and will sustain a longer life-span. This is critical when choosing a quality carbon filter like a Phat Filter.
Phat Filter’s quality is also backed up by math and science too. Adsorption Yield tells you how good the carbon is. It’s an easy equation: Dry Apparent Density x Butane Number = Adsorption yield.
The numbers don’t lie, Phat Filters are easily the best deal in the marketplace.








