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About this item

• CLEANER, BETTER-TASTING WATER - Reduces bad taste and odor, including chlorine taste and odor, for good general-purpose drinking water throughout your home.
• FULL CARBON-BED CONTACT - Water travels the entire length of the granular activated carbon bed, and an internal expansion pad minimizes channeling and bypass for consistent, optimal adsorption.
• NSF/ANSI 42 CERTIFIED WITH POST-FILTER - Tested and certified by NSF International to NSF/ANSI Standard 42 for material requirements, with a built-in post-filter that reduces carbon fines and suspended particles.
• FITS ALL 20-INCH BIG BLUE HOUSINGS - Measures 20" x 4.5" and fits any 20" Pentair Pentek Big Blue or other heavy-duty housing, replacing any 20" x 4.5" carbon cartridge.
• 25,000-GALLON CAPACITY - Rated for up to 25,000 gallons of chlorine taste and odor reduction at 4 gpm and temperatures to 125°F. Replace about every 6 months or when taste or flow declines.

Pentair Pentek GAC Series Cartridges effectively reduce unwanted taste and odors, including chlorine taste & odor from your drinking water. Designed to allow maximum contact between the water and carbon ensuring optimal adsorption. The construction of the cartridge allows water to enter at one end and pass through the entire length of the carbon bed before exiting the other end of the cartridge, while an internal expansion pad minimizes channeling or bypass. Before the water exits the cartridge, a post-filter helps reduce carbon fines and other suspended particles from the filtered water. The post-filter is permanently fastened eliminating any potential for bypass. For best results, especially in high flow/high sediment applications, we suggest you team up a GAC post-filter with a Fibredyne pre-filter (Pentair Pentek FloPlus-20BB, EP-20BB, or C1-20BB) or an Extruded Carbon Block pre-filter (Pentair Pentek RFC-20BB or NCP-20BB).