Pentek 20in Big Blue Carbon Replacement Cartridge
20" x 4.5" carbon block cartridge with bonded PAC for whole-house filtration. Improves chlorine taste and odor; high porosity helps prevent early plugging. Customers report improved water taste; some note no pressure drop while others see reduced pressure
Highlights
- chlorine taste and odor reduction
- fits 20" Big Blue housings
- large capacity with long replacement cycle
Pros
- improves chlorine taste and odor
- fits 20" Big Blue housings
- high porosity design reduces early plugging
- NSF certified
- large capacity (44,000 gallons)
Cons
- mixed pressure results among customers
Best For
Features
- Reduces chlorine taste and odor beyond standard carbon blocks
- Fits all 20" Big Blue or other heavy duty housings; replacement for 20" x 4.5" cartridges
- High porosity design resists premature plugging during adsorption
- NSF International tested and certified for quality assurance
- 40,000-44,000 gallon capacity; replace annually or when performance declines
