5 Micron
Fits in 20" Big Blue (BB) Filter Housings (2 Pack
WF-CB205-BB 4.5"x20" Activated Carbon Block Water Filter Cartridge
WFD
WFD, WF-CB205-BB 4.5"x20" Activated Carbon Block Water Filter Cartridge, Fits in 20" Big Blue (BB) Filter Housings (2 Pack, 5 Micron)
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