AF-20-3621 Organic Tannin Removal Filter
The Aries AF-20-3621 uses premium ion exchange resin to target tannins and organic compounds that cause tea-colored water, staining, and taste issues in well water systems. This 20-inch specialty cartridge fits standard residential housings and delivers up to 665 gallons of treatment capacity with a 25-micron particulate rating.
Filter Cartridge Details
| Model Number | AF-20-3621 |
| Dimensions | 20" × 2.5" |
| Filtration Type | Ion Exchange Resin |
| Micron Rating | 25 micron |
| Flow Rate | 0.5 GPM operating |
| Capacity | 665 gallons |
| Temperature Range | 40°F – 90°F |
| Pressure Range | 20 – 125 psi |
| Cap Material | ABS (double open-end) |
| Body Material | ABS (FDA approved) |
| Gasket Material | EPDM |
Recommended Guidelines
| pH Range | 6.0 – 8.0 |
| Chlorine | < 0.3 ppm |
| Conductivity | < 1000 micromhos/cm |
| Arsenic | < 50 ppb |
| Sulfate | < 100 ppm |
| Phosphate | < 5 ppm |
| Silica | < 10 ppm |
| Turbidity | < 5 NTU |
Housing Requirements
The AF-20-3621 fits any standard 20-inch residential or industrial filter housing with 2.5-inch inner diameter, including both standard and slim-style configurations. The double open-end ABS caps ensure compatibility with most whole-house and point-of-entry well water systems. Best performance occurs with water meeting the quality guidelines above, particularly low chlorine and controlled pH levels to protect the ion exchange resin from premature exhaustion.
