July 6, 2026 by admin with 0 comments

Find the Right Water Filter for Your Fridge

A refrigerator water filter is one of the easiest home upgrades there is — until you try to buy a replacement and get lost in a sea of part numbers. MWF, XWFE, DA29-00020B, EDR1RXD1… none of it means much until you know how the system works. This guide shows you exactly how to find the filter that fits your fridge, so you order the right one the first time.

Start with your refrigerator’s model number, not the filter

The single most reliable way to find your filter is to work backwards from your refrigerator’s model number. You’ll find it on a sticker inside the fridge — usually along the top wall, on a side wall, or near the crisper drawers. It’s a string like GSS25GSHSS or WRS325SDHZ.

Once you have it, you can look it up on the manufacturer’s website (search “[brand] water filter finder”) to see the exact filter that model takes. This matters because the same fridge brand uses different filters across model years — a GE from 2015 and a GE from 2021 often need completely different cartridges.

Find your current filter — the fastest shortcut

If your fridge already has a filter installed, the part number is usually printed right on it. Pop it out (twist or pull, depending on the model) and read the label. That number is your answer — you just need to buy the same one again, or a compatible equivalent.

Filters live in one of three places:

Inside, upper-right corner — most French-door and side-by-side models
In the base grille at the very bottom front — older push-in cartridge styles
Behind the crisper drawers — some bottom-freezer models

The most common filters by brand

Here’s a quick reference for the filters you’ll run into most often. Always confirm against your own model, but this covers the majority of fridges in use today:

GE

MWF — the classic GE filter for many side-by-side and bottom-freezer models
XWF and XWFE — newer French-door models (the XWFE added a chip that reads the filter; it replaced the XWF)
RPWFE — GE French-door models with a filter-detecting RFID tag

Samsung

DA29-00020B (also sold as HAF-CIN) — the most common Samsung French-door filter
DA29-00003G — older Samsung side-by-side models

Whirlpool, Maytag, KitchenAid & Amana (EveryDrop)

These brands share the EveryDrop system, numbered by Filter 1, 2, 3… (part numbers EDR1RXD1, EDR2RXD1, EDR3RXD1, and so on). Your fridge is labeled with which “Filter” number it takes.

LG & Kenmore

LT1000P and LT700P cover a large share of recent LG (and LG-built Kenmore) French-door refrigerators.

Should you buy the genuine filter or a compatible one?

You’ll almost always find two options for your filter: the genuine (OEM) version from the fridge maker, and cheaper compatible filters from third-party brands. Compatibles can save you real money, but there are trade-offs — especially on newer fridges that electronically detect the filter. We break down exactly when each one makes sense in our guide on OEM vs. compatible filters.

Don’t forget how often to replace it

Most refrigerator water filters are rated for six months or roughly 200–300 gallons, whichever comes first. If your water starts tasting different, the flow slows down, or your dispenser light turns red, it’s time — don’t wait. A tired filter stops removing contaminants and can actually harbor bacteria.

The bottom line

Finding the right filter comes down to one habit: identify your fridge’s model number (or read the old filter), then match it. Once you know your part number, the only question left is where to buy it for the best price — which is exactly what we’re here for. Search your filter’s part number at the top of the page to compare prices across trusted retailers in one click.