Aries (AF-20-2011-BB) 20"x4.5" Big Blue 1 Lb. KDF-55-GAC Filter
Filter Cartridge Details
| Part Number | AF-20-2011-BB |
| Dimensions | 20" x 4.5" (Big Blue) |
| Media Type | KDF-55 & Granular Activated Carbon |
| KDF Weight | 1 lb. KDF-55 process media |
| Primary Application | Whole-house heavy metal reduction |
| Target Contaminants | Mercury, iron, hydrogen sulfide, chlorine, microorganisms |
| Housing Compatibility | Standard 20" Big Blue housings |
| Manufacturer | Aries Filter Works (OEM) |
Cartridge Replacement Steps
- Shut off water supply and relieve system pressure by opening a downstream faucet
- Unscrew the Big Blue housing sump using a filter wrench and remove the old cartridge
- Clean the housing sump with mild soap and water, then rinse thoroughly
- Insert the Aries AF-20-2011-BB cartridge and reassemble the housing with a lubricated o-ring
- Turn water back on slowly, check for leaks, and flush the system for 5 minutes before use
Housing Requirements
The AF-20-2011-BB is designed for standard 20-inch Big Blue filter housings with 4.5-inch inner diameter. This specialty filter works in whole-house configurations where heavy metal reduction and chlorine removal are primary concerns. Ideal for well water applications with elevated iron or mercury levels, or municipal water requiring chloramine and taste-odor treatment. Replace every 6-12 months depending on water quality and household usage.
Filter Cartridge Details
| Part Number | AF-20-2011-BB |
| Dimensions | 20" x 4.5" (Big Blue) |
| Media Type | KDF-55 & Granular Activated Carbon |
| KDF Weight | 1 lb. KDF-55 process media |
| Primary Application | Whole-house heavy metal reduction |
| Target Contaminants | Mercury, iron, hydrogen sulfide, chlorine, microorganisms |
| Housing Compatibility | Standard 20" Big Blue housings |
| Manufacturer | Aries Filter Works (OEM) |
Cartridge Replacement Steps
- Shut off water supply and relieve system pressure by opening a downstream faucet
- Unscrew the Big Blue housing sump using a filter wrench and remove the old cartridge
- Clean the housing sump with mild soap and water, then rinse thoroughly
- Insert the Aries AF-20-2011-BB cartridge and reassemble the housing with a lubricated o-ring
- Turn water back on slowly, check for leaks, and flush the system for 5 minutes before use
Housing Requirements
The AF-20-2011-BB is designed for standard 20-inch Big Blue filter housings with 4.5-inch inner diameter. This specialty filter works in whole-house configurations where heavy metal reduction and chlorine removal are primary concerns. Ideal for well water applications with elevated iron or mercury levels, or municipal water requiring chloramine and taste-odor treatment. Replace every 6-12 months depending on water quality and household usage.
Original: $106.99
-65%$106.99
$37.45Description
Filter Cartridge Details
| Part Number | AF-20-2011-BB |
| Dimensions | 20" x 4.5" (Big Blue) |
| Media Type | KDF-55 & Granular Activated Carbon |
| KDF Weight | 1 lb. KDF-55 process media |
| Primary Application | Whole-house heavy metal reduction |
| Target Contaminants | Mercury, iron, hydrogen sulfide, chlorine, microorganisms |
| Housing Compatibility | Standard 20" Big Blue housings |
| Manufacturer | Aries Filter Works (OEM) |
Cartridge Replacement Steps
- Shut off water supply and relieve system pressure by opening a downstream faucet
- Unscrew the Big Blue housing sump using a filter wrench and remove the old cartridge
- Clean the housing sump with mild soap and water, then rinse thoroughly
- Insert the Aries AF-20-2011-BB cartridge and reassemble the housing with a lubricated o-ring
- Turn water back on slowly, check for leaks, and flush the system for 5 minutes before use
Housing Requirements
The AF-20-2011-BB is designed for standard 20-inch Big Blue filter housings with 4.5-inch inner diameter. This specialty filter works in whole-house configurations where heavy metal reduction and chlorine removal are primary concerns. Ideal for well water applications with elevated iron or mercury levels, or municipal water requiring chloramine and taste-odor treatment. Replace every 6-12 months depending on water quality and household usage.
