Frigidaire PureSource Series Water Filters: Which One Fits Your Model

Jan 4, 2026

Frigidaire keeps its fridge lineup solid, with models like the FGHC2331PF or FPBS2777RF holding up in busy kitchens. The PureSource series filters make sure your dispenser water stays fresh, knocking back chlorine or sediments without much fuss. Picking the right one boils down to your model's age and type,newer ones often need RFID-chipped versions, while older setups stick to basics.

This guide breaks down the main series like Ultra, 3, and Plus, plus a fit rundown to avoid leaks or errors. User forums suggest generics work if certified, but Frigidaire pushes originals for warranty reasons. Capacities run 200-300 gallons or six months, though hard water cuts that short. Prices? Originals around $40-60, generics $20-30. While the series overlap a bit (Ultra and 3 share similarities), matching by part number via Frigidaire's site prevents headaches.

Series Breakdown: Ultra, 3, Plus Explained

The PureSource line evolved over years, with each tackling contaminants like chlorine (over 97%), lead (near 99%), and cysts via NSF 42/53 certification. Ultra focuses on broad cuts, 3 adds advanced like PFAS, and Plus handles basics in legacy models. Overlaps exist,WF3CB often replaces ULTRAWF, blurring Ultra and 3.

  • PureSource Ultra (ULTRAWF / WF3CB): The workhorse for mid-range, reducing up to 99% contaminants including chlorine taste, lead, mercury, and pesticides. Push-in design; 200 gallons; fits older Gallery/Professional. Appears solid for everyday, but some note it clogs faster in sediment-heavy taps.
  • PureSource 3 (EPTWFU01 / PureSource3): Newer upgrade with RFID chip for authenticity, cutting PFAS, pharma, and microplastics alongside basics (NSF 401 added). 200 gallons; push-in upper right; for recent French-door like FG4H2272UF. The chip locks uncertified generics (error lights), drawing critiques as a cash grab, though it ensures performance.
  • PureSource Plus (WF2CB / WFCB): Older entry-level, focusing on chlorine odor and particulates (NSF 42 only). Twist-in or push-in; 300 gallons; for legacy side-by-side or ice makers like FGHS2631PF. Less advanced, but cheap and effective in clean municipal water,subtler benefits in hard areas.

A nuance: In spots with pristine taps, differences feel minor, but for well water or old pipes, 3's extras might justify the chip hassle.

Fit Guide: Matching Series to Your Model

Fit depends on your fridge's series and year,French-door often takes 3, side-by-side Ultra or Plus. Use Frigidaire's finder with your model (inside door or tag) or check the old filter's part. Mismatches trigger shutoffs in chipped models.

  • French-Door Models (e.g., FG4H2272UF, FPBC2277RF): PureSource 3 (EPTWFU01) common; upper right push-in with RFID. If pre-2018, might use Ultra (ULTRAWF).
  • Side-by-Side Models (e.g., FGHC2331PF, FGHS2631PF): PureSource Ultra (WF3CB/ULTRAWF) or Plus (WF2CB); base grille or rear; twist-in for Plus.
  • Bottom-Freezer/Professional (e.g., FPBS2777RF, FPHC2399LF): Often PureSource Ultra II (EPTWFU01 variant) or Ultra; check for RFID,newer lean 3.
  • Legacy/Ice Makers (e.g., FGUS2642LF): PureSource Plus (WFCB); inline or twist-in; simpler for basic needs.

Quick table for visuals:

Series

Part Examples

Best Models

Install Type

Ultra

ULTRAWF/WF3CB

FGHC2331PF, FGHS2631PF

Push-in

3

EPTWFU01

FG4H2272UF, FPBC2277RF

Push-in/RFID

Plus

WF2CB/WFCB

FGUS2642LF, older Gallery

Twist-in

Quick Tips for Selection and Setup

Grab originals if warranty matters; generics with chip bypass save if certified. Install: Press button to eject (push-in), twist left (older); align, push/turn lock; flush 3-4 gal to skip bitterness. Reset light holding button. Hard water? Swap early. Slow flow? Bypass test points to clogs or pressure. These filters boost daily sips, though in low-risk taps, basics like Plus suffice,newer 3 shines for emerging stuff like PFAS.


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