Pentek GAC-BB Big Blue Carbon Water Filter Cartridges (10-Inch, Pack of 2)

Boosted water quality for your home

Experience better-tasting water with the Pentek GAC-BB Big Blue carbon cartridge. Sized for 10-inch Big Blue housings, this pair replaces standard carbon filters and is designed to maximize contact between water and activated carbon, helping to minimize common tastes and odors in daily use—from taps to showers.

Key benefits

• Reduces chlorine taste and odor for general-purpose drinking water
• Fits all 10-inch Pentair Pentek Big Blue housings and other 10-inch heavy-duty housings
• Post-filter helps reduce carbon fines and other suspended particles from filtered water
• NSF International tested and certified for peace of mind
• 12,500 gallon capacity with recommended replacement every three months or when water quality changes

How it works

The water enters at one end of the cartridge and passes through the entire carbon bed before exiting the other end. An internal expansion pad minimizes channeling or bypass, promoting uniform contact with the carbon for adsorptive filtration. A post-filter is permanently fastened to an innovative support basket, helping prevent bypass and trapping carbon fines before water leaves the cartridge.

Usage and replacement guidance

• Ideal for general-purpose filtration across a home’s water lines
• Designed for use with 10" Big Blue housings for compatibility and efficiency
• Replace every three months or when you notice a drop in water pressure or water quality

This listing includes a two-pack, offering convenient, ready-to-replace cartridges to support ongoing filtration for steady taste and odor reduction. Always follow the housing manufacturer’s installation and replacement instructions.