Pentair FreshPoint F2B1/F2B2 Replacement Filter Cartridges, Set of 2 Carbon Filters — PFAS Reduction, 675‑Gallons

Two Pentair FreshPoint carbon replacement cartridges that restore clean, better-tasting under-sink drinking water and are click-in ready for fast annual swaps.

These F2B1/F2B2 replacement cartridges are designed for Pentair FreshPoint two-stage systems and are also compatible with certain three-stage and reverse osmosis setups. When used in the correct FreshPoint two-stage configuration, the system has been independently tested to reduce a broad range of contaminants — including PFAS chemicals — while improving chlorine taste and odor. Each twin-pack delivers up to 675 gallons of service (roughly one year for many households), and the color-coded, tool-free cartridges make maintenance straightforward.

How do these cartridges improve drinking water at the sink?

The cartridges use activated carbon media to capture contaminants that affect taste and odor while helping reduce specific harmful compounds when installed correctly. They fit directly into FreshPoint housings with a simple click, so the system resumes normal flow and filtration quickly after replacement.

• Activated carbon for chlorine taste and odor reduction
• Designed to trap particulates down to about 0.5 microns
• Color-coded cartridges ensure correct filter order during installation
• Click-in design for fast, tool-free cartridge swaps

What contaminants are these cartridges certified to reduce?

When installed as part of a FreshPoint two-stage system, independent certifications show reduction of several contaminants commonly found in drinking water. The cartridges are tested against industry NSF/ANSI standards for both health-related and aesthetic contaminants.

• Tested to reduce total PFAS (including PFOA and PFOS) up to about 99.7% in a two-stage arrangement
• Meets NSF/ANSI Standards 42, 53, and 401 for taste, odor, select chemicals, lead, and cysts
• Also reduces microplastics and agricultural residues like atrazine when validated by the appropriate configuration

How long do the filters last and when should I replace them?

Each two-cartridge set provides up to 675 gallons of filtered water — typically around a year for average household use — but actual life depends on water quality and consumption. Replace the cartridges annually or sooner if you notice slower flow or a change in taste.

• 675-gallon nominal capacity per set (approximate; varies by water conditions)
• Recommended annual replacement or earlier with reduced flow
• Simple visual cues and flow changes help signal end of service life
• Compatible with a range of FreshPoint model numbers for straightforward ordering

Which systems are these replacement cartridges compatible with?

This twin-pack is made to fit Pentair FreshPoint under-sink systems and several specific model numbers; they also serve in some three-stage and RO assemblies. Verify your unit’s model to ensure the correct fit before purchase.

• Compatible FreshPoint models include: 161112, 161152, 158854, 158853, 158840, 158839, and 158837
• Intended for FreshPoint two-stage use to achieve PFAS reduction certification
• Also usable in approved FreshPoint three-stage and reverse osmosis systems

Who is this for: Homeowners and renters who want a dependable, easy-to-maintain under-sink filtration solution that improves taste and reduces a wide range of contaminants — including PFAS when installed in the tested two-stage configuration. It’s a practical choice for kitchens where annual, tool-free cartridge replacement is preferred and for anyone prioritizing certified reduction of specific drinking-water contaminants.