Granulated Activated Carbon (GAC) filters provide a fast flow alternative when carbon technology is needed. Micron ratings for GAC are considered estimates due to the channeling that occurs within GAC, unless paired with a filtering media, such as PP combinations in order to confirm a micron rating.

| Model # | Description |
| GAF1025GACPP-5 | 10" x 2.5" GAC and PP -5 micron |
| GSF1025GAC-20 | 10 x 2.5" GAC-20 micron |
| GSF1045GAC-20 | 10” X 4.5” GAC-20 micron |
| GSF2045GAC-20 | 20” x 4.5” GAC- 20 micron |