Apr 22 , 2026

GE MWF Refrigerator Water Filter: Everything You Need to Know

The GE MWF is one of the most common refrigerator water filters in American homes. If you own a GE side-by-side or French-door refrigerator made between roughly 2005 and 2015, there is a very good chance the MWF is the filter it was designed to use. That makes the MWF one of the highest-volume filter part numbers on the aftermarket, and also one of the most counterfeited.

This guide covers which refrigerators take the MWF, how to replace it, how to recognize a genuine GE filter versus a knock-off, and where to buy with fast shipping and no surprises.

What the GE MWF Is

The MWF (sometimes listed as GWF, SmartWater, MWFP, MWFA, MWFINT, or MSWF in regional packaging) is a cartridge-style refrigerator water filter manufactured by GE Appliances. It uses activated carbon and particulate filtration to reduce chlorine, cysts, lead, mercury, and a range of other contaminants from ice and drinking water produced by the refrigerator.

NSF certifications on the genuine GE MWF: - NSF/ANSI Standard 42 (aesthetic effects: chlorine, particulates, odor) - NSF/ANSI Standard 53 (health effects: lead, cysts, select VOCs, mercury)

Capacity: 300 gallons or 6 months, whichever comes first Flow rate: approximately 0.5 gallons per minute Filter type: grille-mounted, push-in twist-style cartridge

Which Refrigerators Take the MWF

The MWF was the standard filter in most GE and Hotpoint side-by-side and French-door refrigerators manufactured from roughly 2005 to 2015. It is also found in some Kenmore refrigerators (when GE-built) and select Amana and Hotpoint models.

Common GE model series that use the MWF: - GSS, GSH, GSC (side-by-side, most variants) - PSS, PSC (profile series side-by-side) - GFS, GFE, GFC (French-door series) - HSS, HSM (Hotpoint by GE)

Kenmore models 46-9905, 46-9996, 9996, and various 46- series filters reference MWF compatibility.

The MWF mounts in the bottom-front grille of the refrigerator, behind the kick plate, not inside the main compartment. If your GE refrigerator has a twist-style filter accessed from the front grille below the doors, the MWF is almost certainly the right cartridge.

What the MWF Is NOT

The MWF is frequently confused with similar-looking filters that are not cross-compatible:

  • GE XWF, XWFE, RPWFE — newer GE filters used in premium models from 2015 forward. Similar look but not interchangeable with MWF. The RPWFE and XWFE have RFID chips that the refrigerator reads.
  • GE GXRTQR, FXSVF — whole-house and inline filters, not refrigerator filters.
  • Generic "fits GE" filters without MWF designation — aftermarket cartridges that may fit physically but do not carry the MWF's NSF certifications.

If your filter housing is inside the main refrigerator compartment (top-left or top-right corner), you do not have an MWF refrigerator. You likely have XWF, XWFE, or RPWFE.

How to Replace the GE MWF

The MWF is a front-grille cartridge. Replacement takes less than two minutes.

  1. Locate the grille at the bottom front of the refrigerator. There is a small filter cover or the filter itself is visible behind the grille.
  2. Push the eject button on the filter housing if your refrigerator has one. On some models, the filter itself can be rotated without a separate release.
  3. Rotate the old filter counter-clockwise a quarter turn. It should unlock.
  4. Pull the old filter straight out. A small amount of water may drip; a towel under the grille catches it.
  5. Remove the protective caps from the new MWF filter.
  6. Align the new filter with the housing (there is a keyed orientation).
  7. Push the filter in and rotate clockwise a quarter turn until it locks.
  8. Dispense approximately 2 gallons of water through the refrigerator dispenser to flush carbon fines. The water will look gray or black at first; this is normal.
  9. Reset the filter indicator light if your model has one. On most GE refrigerators, press and hold the "Reset Water Filter" button (or "Filter" button) for 3 seconds until the indicator resets to green.
  10. Discard the first batch of ice made after installation.

Counterfeit GE MWF Filters

The MWF is one of the most counterfeited refrigerator filters on the market. Counterfeit filters are sold on various online marketplaces, sometimes packaged to closely resemble the genuine GE product.

Signs of a counterfeit or low-quality MWF:

  • Price significantly below market (genuine GE MWF typically runs $45 to $55; anything under $15 is a red flag)
  • Missing or inconsistent NSF certification markings on packaging
  • Packaging that is subtly off from current GE packaging (logos, typography, registration marks)
  • Filter body construction that does not match the weight or finish of genuine GE parts
  • No GE manufacturer serial number or lot code

Water Filters FAST carries genuine GE MWF filters sourced through authorized supply channels. When in doubt, buy from a filter specialist, not a marketplace seller.

When to Replace the MWF

GE specifies every 6 months or 300 gallons, whichever comes first. Indicators:

  • Filter indicator light turns red or orange (on models that track this)
  • Water flow slows noticeably at the dispenser
  • Ice cubes develop off-tastes
  • Water has a chlorine or metallic taste

Even in a household with light refrigerator water use, 6 months is the right replacement interval because bacterial growth in the media can develop over time.

Certified Aftermarket MWF Alternatives

The aftermarket has several MWF-compatible filters with their own NSF certifications. Reputable brands include Waterdrop, ClearChoice, and others. Performance on certified aftermarket can approach OEM for the specific contaminants tested, at lower cost.

For the refrigerator still under manufacturer warranty, OEM is the safest choice to avoid any warranty friction. For older refrigerators, certified aftermarket is a legitimate option. Uncertified generics are a gamble that usually is not worth the small savings.

Where to Buy the GE MWF

Water Filters FAST stocks genuine GE MWF refrigerator water filters with same-day shipping on weekday orders placed before 1pm CST. Free shipping on orders over $75, $5 flat-rate shipping on smaller orders, 30-day returns, satisfaction guarantee. Call 855-789-FAST with model compatibility questions.

Ordering two filters at once is efficient for most households. Two MWF cartridges cover a full year of typical use and exceed the free-shipping threshold.

Frequently Asked Questions

How often should I replace the GE MWF refrigerator filter? Every 6 months or 300 gallons, whichever comes first. This is GE's specification based on the NSF certification limits.

Is the GE MWF the same as the GE XWF or RPWFE? No. The MWF, XWF, and RPWFE are three different filter designs for different generations of GE refrigerators. They are not interchangeable. Check your existing filter or your owner's manual to confirm which filter your refrigerator takes.

Does the MWF filter remove lead? Yes. The genuine GE MWF is NSF/ANSI Standard 53 certified for lead reduction. Certified aftermarket MWF filters that also carry NSF 53 provide comparable lead reduction.

Will a generic filter work in my GE refrigerator? Many aftermarket MWF-compatible filters are sold. Certified ones carrying NSF 42 and 53 can perform comparably. Uncertified generics are unreliable. Fit quality on aftermarket filters varies; some leak or fail to seat properly. Genuine GE MWF or a well-reviewed certified aftermarket is the reliable choice.

Why does the water look gray when I first use a new MWF? Carbon fines from the new filter media. This is normal. Run approximately 2 gallons through the dispenser to flush the fines before drinking. Discard the first batch of ice as well.

How do I reset the filter indicator light on my GE refrigerator after changing the MWF? On most GE refrigerators, press and hold the "Reset Water Filter" button (or "Filter" button on some models) for 3 seconds. The indicator should reset to green. If the reset does not work, consult your specific model's manual for the exact procedure.

Is the GE MWF still being made? Yes, genuine GE MWF filters continue to be manufactured and supplied through authorized distribution. GE did introduce newer filter designs (XWF, XWFE, RPWFE) for newer refrigerators, but the MWF remains in production for the large installed base of refrigerators that use it.