Which Filter Fits My Refrigerator

Which Filter Fits My Refrigerator -- a free WaterByTheBook tool cross-referencing 39 refrigerator filter families to the OEM and certified-aftermarket filters that fit them, with the verified certification for each option.

Free, no signup. Which Filter Fits My Refrigerator.

Which water filter fits your fridge?

Enter your fridge model or your current filter's part number and we will show the OEM filter that fits, its NSF certification, and the certified aftermarket options -- with the honest caveats. We read 58 filter families and the NSF listings so you do not have to.

4 possible matches -- confirm the one that matches the model printed on your filter:

GE MWF / MWFP

OEM certification: NSF 42 NSF 53

Verified: checked against the NSF/WQA listings (info.nsf.org), as of 2026-06-24. Certification is SKU-specific -- confirm your exact model on the listing.

Also sold as: MWF, MWFP, MWFA

Certified aftermarket options (verify the exact SKU):

  • Waterdrop NSF 53 (lead) on select SKUs
  • AQUACREST NSF 53 (lead) on select SKUs
  • GLACIER FRESH NSF 42 only (taste/odor)

Heads up: Older GE side-by-side / bottom-freezer (pre-XWF, no RFID).

Confirm the model printed on your CURRENT filter or in the fridge's manual before buying -- one fridge line can use different filters across model years.

GE MSWF

OEM certification: NSF 42 NSF 53 NSF 401

Verified: checked against the NSF/WQA listings (info.nsf.org), as of 2026-06-24. Certification is SKU-specific -- confirm your exact model on the listing.

Also sold as: MSWF, MSWF3PK, MSWFDS, 101820A, 101821B, 101821-B, 238C2334P003, AP3997949, PS1559689

Certified aftermarket options (verify the exact SKU):

  • Waterdrop NSF 53 (lead) on select SKUs
  • Tier1 NSF 53 (lead) on select SKUs

Heads up: Twist-and-lock cartridge for GE side-by-side and GE Profile side-by-side refrigerators from the 2007 model year onward. Mounts in the upper-rear interior of the fresh-food compartment. Replace every 6 months / 300 gallons.

Confirm the model printed on your CURRENT filter or in the fridge's manual before buying -- one fridge line can use different filters across model years.

GE GSWF

OEM certification: NSF 42 NSF 53

Verified: checked against the NSF/WQA listings (info.nsf.org), as of 2026-06-24. Certification is SKU-specific -- confirm your exact model on the listing.

Also sold as: GSWF, GSWFDS, 238C2334P001, AP3418061, EFF-6023A

Certified aftermarket options (verify the exact SKU):

  • Waterdrop Plus GSWF NSF 53 (lead) on select SKUs
  • ICEPURE PRO Lead (53) via IAPMO, not NSF-listed
  • Instapure REF-IPG-2 Unverified
  • Tier1 NSF 53 (lead) on select SKUs

Heads up: Twist-style cartridge for select GE side-by-side refrigerators (GTS/GTH/GSS/GSL/PDS/PTS series). Longer rated life than most GE cartridges at 750 gallons / 6 months. Kenmore cross-reference 46-9914 / 9914.

Confirm the model printed on your CURRENT filter or in the fridge's manual before buying -- one fridge line can use different filters across model years.

GE MXRC (SmartWater canister)

Also sold as: MXRC, FXRC (cross-ref), GXRLQR (in-line sibling)

Heads up: Round metal-canister SmartWater cartridge that mounts INSIDE the refrigerator above the top shelf on older GE/Hotpoint/Kenmore fridges. Kenmore cross-reference 46-9905. Distinct from GE's twist-lock fresh-food cartridges and from the external in-line GXRLQR.

Confirm the model printed on your CURRENT filter or in the fridge's manual before buying -- one fridge line can use different filters across model years.