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Aries (AF-20-2014-BB) 20" x 4.5" (4 lb) KDF-55-GAC Filter

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Aries (AF-20-2014-BB) 20" x 4.5" (4 lb) KDF-55-GAC Filter

The Aries AF-20-2014-BB combines 4 pounds of KDF-55 with granular activated carbon in a 20" x 4.5" cartridge designed for whole-house and commercial applications requiring heavy metal reduction, chlorine removal, and extended filter life. This dual-media filter delivers up to 85,000 gallons of capacity with bacteriostatic properties that control microorganism growth throughout the filter's service life.
SPECIFICATIONS

Core Performance Data

Dimensions
20" × 4.5"
Big Blue cartridge size
Media Weight
4 lb
KDF-55 and GAC blend
Operating Flow
3 GPM
5 GPM maximum
Capacity
85,000 gal
Typical service life
Media Type
KDF-55 / GAC
Redox and adsorption
Model Number
AF-20-2014-BB
Aries Filter Works
TECHNICAL DETAILS

Filter Construction & Chemistry

Manufacturer Aries Filter Works
Primary Media KDF-55 process media (high-purity copper-zinc alloy)
Secondary Media Granular Activated Carbon (GAC)
Filtration Method Oxidation-reduction (redox) + catalytic adsorption
Target Contaminants Chlorine, heavy metals (lead, mercury, copper), hydrogen sulfide, taste, odor
Bacteriostatic Properties KDF media inhibits bacteria, algae, and fungi growth in filter bed
Temperature Range 40°F – 100°F (optimal performance)
COMPATIBILITY & APPLICATIONS

Where This Filter Works

The AF-20-2014-BB is designed for standard 20" x 4.5" Big Blue filter housings used in whole-house systems, well water applications, and commercial installations. The dual-media construction makes it ideal for municipal water with chlorine and heavy metal concerns, as well as well water requiring iron and hydrogen sulfide reduction when used with appropriate pre-filtration. KDF-55 extends the activated carbon's effective life by handling oxidizable contaminants first, allowing the GAC to focus on taste, odor, and organic compound removal. Compatible with most brands of Big Blue housings including Pentek, Culligan, and GE.

💧 Pro tip: KDF media works best at water temperatures above 60°F and performs redox reactions more efficiently than carbon alone. If you're on well water with iron or sulfide issues, use a sediment pre-filter to protect the media bed and maximize the 85,000-gallon service life.
The Aries AF-20-2014-BB combines 4 pounds of KDF-55 with granular activated carbon in a 20" x 4.5" cartridge designed for whole-house and commercial applications requiring heavy metal reduction, chlorine removal, and extended filter life. This dual-media filter delivers up to 85,000 gallons of capacity with bacteriostatic properties that control microorganism growth throughout the filter's service life.
SPECIFICATIONS

Core Performance Data

Dimensions
20" × 4.5"
Big Blue cartridge size
Media Weight
4 lb
KDF-55 and GAC blend
Operating Flow
3 GPM
5 GPM maximum
Capacity
85,000 gal
Typical service life
Media Type
KDF-55 / GAC
Redox and adsorption
Model Number
AF-20-2014-BB
Aries Filter Works
TECHNICAL DETAILS

Filter Construction & Chemistry

Manufacturer Aries Filter Works
Primary Media KDF-55 process media (high-purity copper-zinc alloy)
Secondary Media Granular Activated Carbon (GAC)
Filtration Method Oxidation-reduction (redox) + catalytic adsorption
Target Contaminants Chlorine, heavy metals (lead, mercury, copper), hydrogen sulfide, taste, odor
Bacteriostatic Properties KDF media inhibits bacteria, algae, and fungi growth in filter bed
Temperature Range 40°F – 100°F (optimal performance)
COMPATIBILITY & APPLICATIONS

Where This Filter Works

The AF-20-2014-BB is designed for standard 20" x 4.5" Big Blue filter housings used in whole-house systems, well water applications, and commercial installations. The dual-media construction makes it ideal for municipal water with chlorine and heavy metal concerns, as well as well water requiring iron and hydrogen sulfide reduction when used with appropriate pre-filtration. KDF-55 extends the activated carbon's effective life by handling oxidizable contaminants first, allowing the GAC to focus on taste, odor, and organic compound removal. Compatible with most brands of Big Blue housings including Pentek, Culligan, and GE.

💧 Pro tip: KDF media works best at water temperatures above 60°F and performs redox reactions more efficiently than carbon alone. If you're on well water with iron or sulfide issues, use a sediment pre-filter to protect the media bed and maximize the 85,000-gallon service life.
$194.04
Aries (AF-20-2014-BB) 20" x 4.5" (4 lb) KDF-55-GAC Filter
$194.04

Description

The Aries AF-20-2014-BB combines 4 pounds of KDF-55 with granular activated carbon in a 20" x 4.5" cartridge designed for whole-house and commercial applications requiring heavy metal reduction, chlorine removal, and extended filter life. This dual-media filter delivers up to 85,000 gallons of capacity with bacteriostatic properties that control microorganism growth throughout the filter's service life.
SPECIFICATIONS

Core Performance Data

Dimensions
20" × 4.5"
Big Blue cartridge size
Media Weight
4 lb
KDF-55 and GAC blend
Operating Flow
3 GPM
5 GPM maximum
Capacity
85,000 gal
Typical service life
Media Type
KDF-55 / GAC
Redox and adsorption
Model Number
AF-20-2014-BB
Aries Filter Works
TECHNICAL DETAILS

Filter Construction & Chemistry

Manufacturer Aries Filter Works
Primary Media KDF-55 process media (high-purity copper-zinc alloy)
Secondary Media Granular Activated Carbon (GAC)
Filtration Method Oxidation-reduction (redox) + catalytic adsorption
Target Contaminants Chlorine, heavy metals (lead, mercury, copper), hydrogen sulfide, taste, odor
Bacteriostatic Properties KDF media inhibits bacteria, algae, and fungi growth in filter bed
Temperature Range 40°F – 100°F (optimal performance)
COMPATIBILITY & APPLICATIONS

Where This Filter Works

The AF-20-2014-BB is designed for standard 20" x 4.5" Big Blue filter housings used in whole-house systems, well water applications, and commercial installations. The dual-media construction makes it ideal for municipal water with chlorine and heavy metal concerns, as well as well water requiring iron and hydrogen sulfide reduction when used with appropriate pre-filtration. KDF-55 extends the activated carbon's effective life by handling oxidizable contaminants first, allowing the GAC to focus on taste, odor, and organic compound removal. Compatible with most brands of Big Blue housings including Pentek, Culligan, and GE.

💧 Pro tip: KDF media works best at water temperatures above 60°F and performs redox reactions more efficiently than carbon alone. If you're on well water with iron or sulfide issues, use a sediment pre-filter to protect the media bed and maximize the 85,000-gallon service life.
Aries (AF-20-2014-BB) 20" x 4.5" (4 lb) KDF-55-GAC Filter | Isopure Water