Black Diamond carbon eliminates foul odors, unsightly discoloration and harmful organic substances better than any other brand.

Heat-activated bituminous coal-based granules are specially sized (won't damage filter impellers) and far more efficient than inferior coconut, wood or peat-based carbons. And with Black Diamond, you also get more carbon. As much as 60% of other "pre-washed" carbon weight is water, not carbon.

Black Diamond contains less than 2% moisture.