I’ll be honest with you — I have absolutely been that person standing in the water filter aisle at Lowe’s, clutching my old filter in my hand, staring at a wall of boxes that all look the same. I remember thinking, “Okay… is it Samsung? DA-something? Why do they all have different numbers?” And then I walked out more confused than when I walked in.
If you’ve been there, you’re not alone. Choosing a refrigerator water filter feels way more complicated than it should be — and as a nurse who cares deeply about clean water and health, I want to help simplify it for you.
Here’s the secret: every refrigerator brand has its own OEM filter (Original Equipment Manufacturer). That’s just a fancy way of saying it’s the official, brand-name filter designed for your fridge. OEM filters are guaranteed to fit and meet strict safety standards — but they can also be pricey.
The good news? There are certified replacement filters that cost less and still give you the clean, safe water your family deserves. The key is knowing which filter model your fridge takes and which alternatives you can actually trust.
So, in this guide, we’ll break it all down:
- The most common Samsung, Whirlpool, GE, LG, Frigidaire, and Kenmore filters.
- Why you might (or might not) want to buy OEM.
- The best safe, certified alternatives that save you money.
- How to tell when your filter needs replacing.
- And a step-by-step guide to finding the right filter without the frustration.
(As an Amazon Associate, this post contains affiliate links. If you purchase through these links, I may earn a small commission at no extra cost to you.)
Let’s get you out of the Lowe’s aisle and back to fresh, clean water. 
Samsung Refrigerator Water Filters
- Go-To OEM Filter: HAF-QIN/EXP (DA97-17376B)
- Fits: Samsung side-by-side and French door refrigerators including RS27T, RS25, and RF23 series.
- Why Choose OEM: Tight fit, NSF certified for lead and chlorine, reliable.
- Safe Alternatives: Waterdrop, ICEPURE, Pureline
Shop Samsung-compatible filters → Click Here!!
Whirlpool Refrigerator Water Filters
- Go-To OEM Filter: EDR1RXD1 (Filter 1)
- Fits: Whirlpool, Maytag, Amana, KitchenAid, and Jenn-Air side-by-side fridges with interior push-button filters.
- Why Choose OEM: NSF 401 certified — removes chlorine, lead, pesticides, even some pharmaceuticals.
- Safe Alternatives: Waterdrop, AquaCrest, HMASAV.
Shop Whirlpool-compatible filters → Click Here!!
GE Refrigerator Water Filters
- Go-To OEM Filter: GE MWF
- Fits: GE and Hotpoint refrigerators made after 2001.
- Why Choose OEM: Reliable filtration, widely available.
- Safe Alternatives: Waterdrop, AquaCrest, Pureline.
Shop GE-compatible filters → Click Here!!
LG Refrigerator Water Filters
- Go-To OEM Filter: LT1000P2
- Fits: LG and Kenmore French door refrigerators with the ADQ74793501 housing.
- Why Choose OEM: Great taste improvement, dependable seal.
- Safe Alternatives: Waterdrop, Pureline, ICEPURE.
Shop LG-compatible filters → Click Here!!
Frigidaire Refrigerator Water Filters
- Go-To OEM Filter: ULTRAWF
- Fits: Frigidaire and Electrolux refrigerators with the PureSource Ultra system.
- Why Choose OEM: Solid NSF certification, good sediment control.
- Safe Alternatives: HAPRAIT, Cenmela, JOBABA.
Worth Mentioning: Many people report issues with fittings using off brand filters with Frigidair refrigerators
Shop Frigidaire-compatible filters → Click Here!!
Kenmore Refrigerator Water Filters
- Go-To OEM Filter: 9990 (equivalent to LG LT600P)
- Fits: Many Kenmore side-by-side and bottom-freezer refrigerators.
- Why Choose OEM: Matches the original LG design for proper fit.
- Safe Alternatives: Waterdrop, Pureline, AquaCrest.
Shop Kenmore-compatible filters → Click Here!!
Signs It’s Time to Replace Your Refrigerator Water Filter
- Water tastes metallic, musty, or like chlorine
- Ice is cloudy or smells funny
- Water pressure slows to a trickle
- It’s been 6 months or about 300 gallons
Think of it like changing your smoke alarm batteries — it’s one of those small habits that keeps your family safe and healthy.
How to Find the Right Refrigerator Water Filter (Step-by-Step)
I promise — you don’t need a Lowe’s aisle breakdown to figure this out. Follow these simple steps:
1. Pull Out Your Old Filter
- Take out the filter that’s currently in your fridge.
- Look closely at the label — there will usually be a part number (like HAF-QIN, EDR1RXD1, MWF, LT1000P, ULTRAWF, etc.).
- That part number is the fastest way to match your replacement.
Tip: If the filter doesn’t have a label, snap a photo of it and compare the shape when shopping online.
2. Locate Your Refrigerator Model Number
- Open your fridge and check the inside walls, behind the crisper drawer, or near the kickplate at the bottom.
- The model number usually looks like a string of letters/numbers (ex: RS27T5200SG/AA for Samsung).
- Write this down or snap a quick picture.
3. Match It to the OEM Filter
- Use the model number on the manufacturer’s website, or search “refrigerator water filter for [your model number].”
- This will give you the OEM filter code (the official filter made for your fridge).
Example:
- Samsung RS27T → HAF-QIN/EXP
- Whirlpool WRS325 → EveryDrop EDR1RXD1
- GE GSS25 → MWF
4. Decide: OEM or Certified Alternative
- OEM (Original Equipment Manufacturer): Always safe, fits perfectly, but costs more.
- Certified Alternative: Brands like Waterdrop, Pureline, ICEPURE, and AquaCrest make filters tested to the same NSF standards, usually at half the price.
5. Double-Check for NSF Certification
Look for these logos/numbers on the filter listing:
- NSF 42 → Removes chlorine taste & odor
- NSF 53 → Reduces lead, VOCs, heavy metals
- NSF 401 → Handles “emerging contaminants” like pharmaceuticals, BPA, pesticides
If it doesn’t show certification? Skip it.
6. Order & Install with Confidence
- Once you know your OEM code, you can safely shop OEM or certified alternatives.
- Installing is usually just a twist-and-lock (or push-and-click) process — no tools required.
- Run about 2–3 gallons of water through the dispenser before drinking to flush out air and carbon dust.
Bottom line:
If you can read your old filter or fridge model number, you can always find the right replacement — without standing in the store wondering if DA29-00020B and DA29-00020A are the same thing (been there, done that).
Refrigerator Water Filter Comparison Chart
| Brand | Fits Refrigerator Series | OEM Filter | OEM Pros | OEM Cons | Certified Alternatives |
|---|---|---|---|---|---|
| Samsung | RS27T, RS25, RF23 | HAF-QIN/EXP (DA97-17376B) | Reliable fit, NSF 53 certified | Higher price than aftermarket | Waterdrop, ICEPURE, Pureline |
| Whirlpool | Side-by-side w/ push-button filter | EDR1RXD1 (Filter 1) | NSF 401 for broad contaminant removal | Expensive compared to compatibles | Waterdrop, HMASAV, AquaCrest |
| GE | Most GE & Hotpoint after 2001 | MWF | Reliable, widely available | Counterfeits common online | Waterdrop, Pureline , AquaCrest |
| LG | French door (ADQ74793501 housing) | LT1000P | Tight seal, good taste | Pricey vs alternatives | Waterdrop, Pureline, ICEPURE |
| Frigidaire | PureSource Ultra system | ULTRAWF | NSF certified, handles sediment | Can clog faster in hard water | HAPRAIT, Cenmela, JOBABA |
| Kenmore | Many LG-built Kenmore models | 9990 (LG LT600P) | OEM match ensures fit | Confusing part numbers | Waterdrop, Pureline, AquaCrest |
Final Thoughts From a Nurse 
I’ve seen firsthand how much of an impact clean water can make on a person’s health. And I’ve also seen how confusing and overwhelming it can be to pick something as “simple” as a water filter.
Here’s my advice:
- If you want peace of mind and don’t mind the price, go OEM.
- If you want to save money but still keep your family safe, go with a certified alternative from a trusted brand.
- Whatever you choose, make sure you’re replacing your filter regularly — every 6 months.
Not sure if your refrigerator is filtering enough? Learn more Reverse Osmosis Systems
At the end of the day, hydration should be simple, safe, and stress-free. Click here to learn why clean water matters.
