Where to find your fridge filter and what type you have

Most refrigerators with ice makers or water dispensers have a filter cartridge that needs replacing every six to twelve months, depending on your water quality and how much you use the dispenser. The filter location varies by brand and model. Common spots are inside the fridge (usually in the upper right corner or behind the crisper drawers), under the sink if your fridge has a line running there, or in the back of the fridge near the water inlet valve.

Before you buy a replacement, you need the exact model number of your refrigerator. Find it on a sticker inside the fridge—usually on the side wall, top, or back—or check your owner's manual. Write down the full model number. Then search that number plus "water filter" online or call the manufacturer's customer service line. They will tell you the correct filter part number and where it sits in your specific model. Buying the wrong filter wastes money and won't fit.

Some fridges use a cylindrical cartridge that twists in and out. Others use a flat rectangular filter that slides into a slot. A few high-end models have filters that require a special wrench or tool to remove. Knowing which type you have before you start prevents frustration and damage.

Key Takeaways

  • Find your refrigerator's model number on a sticker inside the fridge, then search that number plus "water filter" to get the exact replacement part you need.
  • Filters typically sit in the upper right corner inside the fridge, behind crisper drawers, under the sink, or in the back near the water inlet valve.
  • Most filters twist out by hand or slide out of a slot, but some models require a wrench or special tool—check your manual first.
  • After installing the new filter, run water through the dispenser for thirty seconds to a minute to flush air and debris from the line.

Step-by-step filter removal and installation

Turn off the water supply to your refrigerator before you start. If the filter is under the sink, look for a small valve on the water line and turn it clockwise. If the filter is inside the fridge, locate the water shut-off valve—usually a small knob on the line at the back of the fridge—and turn it off. This prevents water from spraying when you remove the old filter.

For a twist-in cartridge filter, grip it firmly and turn it counterclockwise by hand. It should come free after a quarter to half turn. Some filters are tight; if yours won't budge, wrap a towel around it for better grip or use a filter wrench (a tool shaped like a strap or socket designed for this job). Have a small bowl or towel ready—water will drip from the line when you remove the old filter.

For a slide-out filter, locate the release button or lever on the filter housing. Press or pull it, and the filter cartridge should slide straight out toward you. Again, have a towel ready for drips. Before you install the new filter, check the rubber seals on the housing. If they look cracked or dried out, wipe them gently with a damp cloth.

Insert the new filter by reversing the removal process. For twist-in filters, align the cartridge with the housing and turn clockwise by hand until it stops—do not force it. For slide-in filters, push the new cartridge straight into the slot until you hear or feel it click into place. Turn the water supply back on and check for leaks around the filter housing for a few minutes.

Flushing the line after installation

After you install a new filter, run water through the dispenser for thirty seconds to one minute without stopping. This flushes air pockets and loose carbon particles from the new filter into the sink or a bucket. The water may look slightly cloudy or gray during this time—that is normal and does not mean the filter is defective.

If you have an ice maker, run it through one full cycle and discard the first batch of ice. New filters sometimes release small particles that can affect the taste of ice. After one full cycle, the ice should be clear and taste normal. If the water still tastes or smells off after flushing and one ice cycle, the filter may be defective—contact the manufacturer or retailer for a replacement.

Knowing when to replace your filter

Most refrigerator filters are rated for six to twelve months of use, but the actual timeline depends on your water quality and how often you use the dispenser. If you live in an area with hard water or sediment, your filter will clog faster. If you rarely use the water dispenser, it may last longer than the rated time.

Signs that your filter needs replacing include water that tastes bad, smells like chlorine, or comes out slowly. Ice that looks cloudy or tastes off is another signal. Some newer fridges have a filter indicator light on the control panel that turns on when replacement is due. Check your manual to see if yours has one and how to reset it after you install the new filter.

Do not ignore a clogged filter. Restricted water flow can damage the water inlet valve over time, and a filter that is not working properly will not remove contaminants. Replacing it on schedule is cheaper than repairing the valve later.

Where to buy replacement filters and what they cost

Buy filters from the refrigerator manufacturer directly, from big-box retailers like Walmart or Home Depot, from online marketplaces, or from appliance parts suppliers. Manufacturer filters are usually the most expensive but may provide to fit. Third-party filters certified to NSF standards (a mark of water safety testing) are often cheaper and work just as well, but check reviews to make sure they fit your exact model.

Prices range widely. Manufacturer filters typically cost fifteen to fifty dollars. Certified third-party filters run five to thirty dollars. Buying a multi-pack (usually two or four filters) is cheaper per filter than buying one at a time. If you plan to stay in your home for several years, a multi-pack saves money and ensures you always have a replacement on hand.

Keep your receipt and the filter box. If a filter fails or does not fit, you will need proof of purchase to return it. Also save the model number somewhere—on your phone, in a note, or on the fridge itself—so you do not have to hunt for it again next time.

Frequently Asked Questions

Can I use a generic filter instead of the brand-name one?

Yes, if it is certified to NSF standards and rated for your exact refrigerator model. Generic filters are often cheaper and work well, but buy from a seller with good reviews for your specific fridge model. Always check the part number before ordering to make sure it fits.

What happens if I do not change the filter?

A clogged filter stops removing contaminants and may restrict water flow so much that the dispenser runs slowly or stops working. Over time, a blocked filter can damage the water inlet valve, which is expensive to repair. Water quality will also decline—it may taste bad or smell like chlorine.

Do I need to turn off the water before changing the filter?

Yes. Turning off the water prevents spraying and flooding when you remove the old filter. The valve is usually a small knob on the water line at the back of the fridge or under the sink. Turn it clockwise until it stops.

Why does my water taste bad after I install a new filter?

New filters release loose carbon particles and air. Run water through the dispenser for thirty seconds to one minute to flush these out. If the taste does not improve after flushing and one full ice cycle, the filter may be defective—contact the seller or manufacturer for a replacement.

How do I reset the filter indicator light?

The reset method varies by brand and model. Check your owner's manual for the exact steps. Most fridges require you to hold a button on the control panel for three to ten seconds, or to remove a small cap and press a reset button on the filter housing itself.