The Aries AF-20-2125 combines 2.5 pounds of KDF-55 media with premium coconut shell GAC in a 20"x2.5" cartridge engineered for dual-action filtration. This specialty filter delivers 5x the lifespan of standard carbon blocks by pairing copper-zinc KDF for heavy metals and chlorine with activated carbon for organic compounds and taste.
SPECIFICATIONS
Aries AF-20-2125 KDF-55-GAC Filter
| Model Number | AF-20-2125 |
| Dimensions | 20" x 2.5" |
| Filter Media | KDF-55 (2.5 lb) & Granular Activated Carbon |
| Micron Rating | 10 Nominal |
| Max Flow Rate | 1 GPM |
| Temperature Range | 40°F to 100°F |
| Primary Targets | Chlorine, heavy metals, VOCs, THMs, scale, bacteria |
| Application | Whole house, well water, drinking water systems |
INSTALLATION & USE
Installation Steps
- Shut off water supply and depressurize the filter housing by opening a downstream faucet
- Remove housing sump using a filter wrench, discard old cartridge, and clean housing interior
- Insert the Aries AF-20-2125 cartridge into the housing, ensuring proper seating at the base
- Lubricate the o-ring with silicone grease and hand-tighten the housing sump until snug
- Turn water supply on slowly, check for leaks, and flush system for 5 minutes before use
COMPATIBILITY
Housing & System Fit
The AF-20-2125 fits all standard 20-inch filter housings with 2.5-inch diameter capacity, including Pentek, Culligan, and generic whole house filter systems. The KDF-55 media makes this cartridge particularly effective for well water applications with iron, hydrogen sulfide, and heavy metal concerns. Compatible with both municipal and private water sources. The dual-media design works in hot or cold water applications up to 100°F, and the bacteriostatic properties of KDF media help control microbial growth between filter changes.
🔧 Pro Tip: Install the AF-20-2125 after sediment prefiltration to protect the KDF-GAC media from premature fouling and maximize the 5x extended service life this cartridge is designed to deliver.
