which-refrigerator-water-filter-do-i-need
Finding the correct refrigerator water filter shouldn’t feel confusing — but for many homeowners, it does. With dozens of filter models, similar-looking cartridges, and brand-specific naming systems, it’s easy to order the wrong one.
Find Your Refrigerator Water Filter
Search by brand, filter number, or problem to get to the right page fast.
Find Your Filter by Brand
The key is not guessing.
Every refrigerator is designed to use a specific filter type, and choosing the correct model ensures proper fit, water flow, and filtration performance. In this guide, you’ll learn exactly how to identify the right filter for your refrigerator, where to find your model number, how to avoid common mistakes, and what to do if you’re still unsure.
By the end, you’ll know precisely which filter you need — and why.
Find Your Refrigerator Model Number
Find Your Refrigerator Water Filter
Start typing your filter number to find the correct replacement.
The most important step in choosing the correct water filter is locating your refrigerator’s model number. This number identifies the exact configuration of your appliance and determines which filter type it uses.
Most refrigerator model numbers can be found in one of these locations:
• Inside the refrigerator compartment on the side wall
• On the door frame near the bottom hinge
• Behind the crisper drawers
• On a sticker inside the fresh food section
• On the back of the refrigerator (less common)
Model numbers are usually a combination of letters and numbers (for example: KRMF706ESS04).
Write this number down exactly as shown before searching for a replacement filter. Even a single incorrect character can lead to ordering the wrong part.
Check Your Current Filter
If you already have a filter installed, remove it and check the part number printed directly on the cartridge. Many filters have the model number clearly labeled on the side.
Find Your Refrigerator Water Filter
Use your refrigerator model number or choose your brand below to find the correct replacement water filter.
For example, you might see numbers like:
• EDR2RXD1 (EveryDrop Filter 2)
• LT1000P (LG)
• DA29-00020B (Samsung)
• XWFE (GE)
If the part number is still visible, you can use that to confirm the exact replacement.
However, be cautious. Some compatible aftermarket filters use alternate part numbers that cross-reference to OEM versions. Always confirm compatibility with your refrigerator’s model number before ordering.
Common Refrigerator Water Filters by Brand
Different refrigerator brands use different filter systems. Below are the most common brands and the filter types they typically require.
LG
Most LG refrigerators use filters such as:
• LT1000P
• LT800P
• LT700P
LG filters are typically located in the upper right corner inside the refrigerator compartment.
Samsung
Common Samsung filter models include:
• DA29-00020B
• HAF-CIN
• HAF-QIN
Samsung filters are often located inside the upper right interior or behind a panel.
Whirlpool & KitchenAid
Many Whirlpool and KitchenAid refrigerators use EveryDrop filters, including:
• EDR1RXD1
• EDR2RXD1
• EDR4RXD1
• EDR5RXD1
KitchenAid refrigerators are frequently manufactured by Whirlpool, which is why they share filter systems.
GE
GE refrigerators commonly use:
• MWF
• XWFE
• RPWFE
GE filters may require a specific chip-enabled version in certain models.
Frigidaire
Frigidaire filter models often include:
• WF3CB
• ULTRAWF
Frigidaire filters are usually located in the upper right rear of the compartment.
Always verify your refrigerator’s model number before purchasing, even within the same brand family.
OEM vs Compatible Filters: What’s the Difference?
When choosing a replacement refrigerator water filter, you’ll typically see two options:
OEM (Original Equipment Manufacturer) filters and compatible aftermarket filters.
OEM filters are produced by the refrigerator brand or its official supplier. These are designed specifically for your appliance and often carry NSF certifications for contaminant reduction.
Compatible filters are third-party alternatives designed to fit the same models. Many compatible filters meet the same filtration standards but are sold at a lower price point.
The most important factor is not the brand label — it’s compatibility and certification. Always confirm that the filter:
• Matches your exact refrigerator model
• Fits your filter housing type
• Meets appropriate NSF/ANSI filtration standards
If you want a deeper comparison between OEM and compatible options, read our detailed breakdown here:
(Link internally to your OEM vs Compatible article.)
Common Mistakes When Choosing a Refrigerator Water Filter
Many homeowners accidentally purchase the wrong refrigerator water filter. Here are the most common mistakes to avoid:
1. Guessing Based on Appearance
Many filters look nearly identical but use different locking mechanisms or internal designs. Always confirm using your model number.
2. Ordering by Brand Only
Not all refrigerators from the same brand use the same filter. Two KitchenAid models may require completely different cartridges.
3. Ignoring Version Numbers
Small differences in model numbers (for example, adding or missing two characters at the end) can change compatibility.
4. Buying the Cheapest Option Without Verification
While compatible filters can offer excellent value, not all third-party options meet proper certification standards. Always verify compatibility and certifications.
5. Forgetting to Flush the Filter After Installation
Most filters require flushing several gallons of water after installation to remove carbon residue and activate proper filtration.
Avoiding these mistakes ensures proper fit, optimal filtration performance, and long-term reliability.
Frequently Asked Questions About Refrigerator Water Filters
How do I know if my refrigerator filter is overdue?
Most refrigerator water filters should be replaced every 6 months. Signs that your filter may be overdue include:
• Slower water flow
• Unusual taste or odor
• Cloudy ice
• Indicator light turning on
If in doubt, replace the filter rather than waiting.
Can I use a compatible filter instead of OEM?
Yes, as long as the compatible filter is specifically rated for your refrigerator model and meets NSF/ANSI filtration standards. Always verify compatibility before purchasing.
What happens if I use the wrong filter?
Using the wrong filter can result in:
• Poor fit
• Water leaks
• Reduced water flow
• Incomplete filtration
• Error messages on certain models
Always match your refrigerator model number before ordering.
Where can I buy the correct refrigerator water filter?
You can purchase both OEM and compatible options online. To avoid ordering mistakes, always search by your exact refrigerator model number rather than just the filter name.
How long does a refrigerator water filter last?
Most filters are designed to last approximately 6 months or 200–300 gallons of water, whichever comes first. Heavy water usage may require more frequent replacement.
Final Thoughts: Choosing the Right Filter the First Time
Choosing the correct refrigerator water filter doesn’t have to be complicated. The key is starting with your exact refrigerator model number, confirming the correct filter type, and verifying compatibility before purchasing.
Taking a few extra minutes to confirm your model prevents ordering the wrong cartridge and ensures proper filtration performance.
If you already know your brand, explore our brand-specific filter guides:
• LG Refrigerator Water Filters
• Samsung Refrigerator Water Filters
• Whirlpool & KitchenAid Filters
• GE Refrigerator Filters
• Frigidaire Refrigerator Filters
If you’re still unsure which filter fits your refrigerator, comment your model number or browse our complete filter directory to find the correct replacement quickly.
Browse Filters by Brand
If you already know your refrigerator brand and simply want to browse compatible filter options, use the directory below. Each link will take you to detailed compatibility information for that specific filter model.
Always confirm your refrigerator model number before purchasing.
This guide walks you step by step through how to identify the correct refrigerator water filter for your appliance and shows you common filter models by brand so you can quickly find the right replacement.
The most reliable way to determine which water filter you need is by locating your refrigerator’s model number. The model number is typically found on a sticker or plate inside the refrigerator.
Common locations include:
- Inside the refrigerator compartment on the side wall
- Along the door frame
- Behind the crisper drawers
- On the back exterior of the refrigerator
Once you have the model number, you can use it to confirm which water filter your refrigerator requires. This is more accurate than relying on the refrigerator brand alone, as many brands use multiple filter models across different product lines.
If your refrigerator already has a water filter installed, remove it and check for a printed model number. Most refrigerator water filters have the filter model clearly labeled on the side or end of the cartridge.
Common examples include:
Matching the printed filter model number is one of the fastest ways to ensure you purchase the correct replacement.
If you know your refrigerator brand, you can often narrow down the correct filter quickly by starting with the most commonly used filters for that brand. Below are popular refrigerator water filter models organized by manufacturer.
Many Frigidaire refrigerators use one of the following water filters:
If your refrigerator is a Frigidaire model, one of these filters is likely the correct replacement.
GE refrigerators often use the following filter models:
LG refrigerators commonly use filters such as:
Samsung refrigerators typically use filters including:
Whirlpool and related brands frequently use EveryDrop filters such as:
Once you identify your filter model from the lists above, you can click through to view detailed information and check current replacement options.
You may notice that some refrigerator water filters are labeled as OEM (original equipment manufacturer) while others are listed as compatible or aftermarket replacements.
OEM filters are made by the refrigerator manufacturer or their official brand partner. Compatible filters are produced by third-party manufacturers and are designed to fit and function like the original filter, often at a lower cost.
Both options can work well when properly certified. Many compatible filters meet NSF standards for contaminant reduction, but it is always important to verify compatibility and certification before purchasing.
Most refrigerator water filters should be replaced every six months or after approximately 200–300 gallons of use, depending on the filter model and water quality.
If you notice reduced water flow, cloudy ice, or changes in taste or odor, it may be time to replace your filter sooner. Regular replacement helps ensure clean drinking water and protects your refrigerator’s water system.
If you are still unsure which water filter your refrigerator uses, try one of the following:
- Check your refrigerator’s owner’s manual
- Search your refrigerator model number online
- Review the brand-specific filter pages on this site
- Remove the existing filter and confirm the printed model number
Taking a few minutes to confirm the correct filter model can help you avoid ordering the wrong replacement.
Once you know your refrigerator water filter model, use the links above to view detailed information and check current pricing and availability for the correct replacement filter.
How Often Should You Replace a Refrigerator Water Filter?
Most refrigerator manufacturers recommend replacing the water filter every six months. Over time, water filters collect sediment, chlorine, and other contaminants from the water supply, which can reduce filtration performance and affect water taste.
Replacing the filter regularly helps maintain clean drinking water and keeps your refrigerator’s water system working properly.
Most Common Replacement Filters
If you’re not sure, these are the most commonly replaced filters: