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Pentair Pentek RFC-BB Big Blue Radial Flow Carbon Water Filter | Radial Flow Granular Activated Carbon, Low Pressure Drop; 10 x 4.5 in; 50,000-Gallon Capacity; Fits 10-Inch Big Blue Housings
- Great-TASTING, Clearer Water
- Radial Flow Reduces Carbon Fines
- Tested and Certified
- Fits 10-Inch Big Blue Housings
$56.03
Price as of Oct 16, 2026, 7:48 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
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Key features
Great-TASTING, Clearer Water
Reduces chlorine taste and odor for fresher whole-house water, with a low pressure drop that keeps flow strong at every tap and fixture in the home.
Radial Flow Reduces Carbon Fines
A bed of granular activated carbon is sandwiched between a porous polyethylene outer shell and a polypropylene core, so the radial flow design significantly cuts the carbon fines common to standard GAC cartridges.
Tested and Certified
The RFC-BB is tested and certified by NSF International to NSF/ANSI Standard 42 for material requirements; durable polypropylene end caps and core stand up to continuous whole-house use.
Fits 10-Inch Big Blue Housings
Measures 10" x 4.5" and fits all 10-inch Pentair Pentek Big Blue and other heavy-duty housings; drops in to replace any 10" x 4.5" carbon cartridge.
50,000-Gallon Capacity
An ideal high-flow carbon stage for point-of-entry systems; delivers up to 50,000 gallons at just 0.9 psi drop at 2 gpm. Replace every 6 to 12 months or when taste and odor return.
Pentair Pentek RFC-BB Big Blue Radial Flow Carbon Water Filter | Radial Flow Granular Activated Carbon, Low Pressure Drop; 10 x 4.5 in; 50,000-Gallon Capacity; Fits 10-Inch Big Blue Housings
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