Watts-GAC-BB20 Watts Granular Activated Carbon Cartridge Full Flow 20 in
Watts GAC-BB20 Filter Cartridge Specs
Full Specifications
| Model Number | Watts-GAC-BB20 |
| Cartridge Dimensions | 4.5" diameter × 20" height |
| Filter Media | Granular Activated Carbon (coconut shell, water-washed) |
| Rated Capacity | 15,000 gallons |
| Operating Pressure | 20 psi minimum, 125 psi maximum |
| Maximum Temperature | 100°F (38°C) |
| Housing Compatibility | Standard 20" big blue housings (4.5" ID) |
| Body Material | NSF-listed polypropylene |
| Primary Function | Chlorine, taste, odor, and chemical reduction |
Where This Cartridge Works
The Watts GAC-BB20 fits any standard 20-inch big blue filter housing with a 4.5" inner diameter. It's commonly used in whole-house filtration systems, under-sink applications, and point-of-entry treatment where chlorine taste and odor removal is needed. This cartridge is ideal for municipal water supplies that have already been filtered for sediment, as GAC works best when protected by upstream sediment filtration. Replace every 12 months or when taste and odor return, whichever comes first. Not intended for bacteriological reduction or sediment removal.
Watts GAC-BB20 Filter Cartridge Specs
Full Specifications
| Model Number | Watts-GAC-BB20 |
| Cartridge Dimensions | 4.5" diameter × 20" height |
| Filter Media | Granular Activated Carbon (coconut shell, water-washed) |
| Rated Capacity | 15,000 gallons |
| Operating Pressure | 20 psi minimum, 125 psi maximum |
| Maximum Temperature | 100°F (38°C) |
| Housing Compatibility | Standard 20" big blue housings (4.5" ID) |
| Body Material | NSF-listed polypropylene |
| Primary Function | Chlorine, taste, odor, and chemical reduction |
Where This Cartridge Works
The Watts GAC-BB20 fits any standard 20-inch big blue filter housing with a 4.5" inner diameter. It's commonly used in whole-house filtration systems, under-sink applications, and point-of-entry treatment where chlorine taste and odor removal is needed. This cartridge is ideal for municipal water supplies that have already been filtered for sediment, as GAC works best when protected by upstream sediment filtration. Replace every 12 months or when taste and odor return, whichever comes first. Not intended for bacteriological reduction or sediment removal.
Original: $86.07
-65%$86.07
$30.12Description
Watts GAC-BB20 Filter Cartridge Specs
Full Specifications
| Model Number | Watts-GAC-BB20 |
| Cartridge Dimensions | 4.5" diameter × 20" height |
| Filter Media | Granular Activated Carbon (coconut shell, water-washed) |
| Rated Capacity | 15,000 gallons |
| Operating Pressure | 20 psi minimum, 125 psi maximum |
| Maximum Temperature | 100°F (38°C) |
| Housing Compatibility | Standard 20" big blue housings (4.5" ID) |
| Body Material | NSF-listed polypropylene |
| Primary Function | Chlorine, taste, odor, and chemical reduction |
Where This Cartridge Works
The Watts GAC-BB20 fits any standard 20-inch big blue filter housing with a 4.5" inner diameter. It's commonly used in whole-house filtration systems, under-sink applications, and point-of-entry treatment where chlorine taste and odor removal is needed. This cartridge is ideal for municipal water supplies that have already been filtered for sediment, as GAC works best when protected by upstream sediment filtration. Replace every 12 months or when taste and odor return, whichever comes first. Not intended for bacteriological reduction or sediment removal.
