PurePro CTO filters are made from high-purity coconut shell activated carbon. You’ll find that our wide range of lengths, diameters, and micron ratings offers an exceptional price-to-performance ratio, making GAC filters unnecessary by comparison. With high performance, excellent dirt-holding capacity, and no carbon particle release, the PurePro series will quickly become your carbon block of choice.

The PurePro carbon block series is ideal for point-of-use (POU) and reverse osmosis (RO) applications. These cartridges can be used in a wide variety of settings, including residential, hospitality, commercial, and industrial sectors. The PurePro carbon blocks are perfect replacements for GAC (Granular Activated Carbon) filters in applications requiring high chlorine removal.