Where Is the Keurig Filter Cartridge?

[Published: July 11, 2026 | Last updated: July 11, 2026]

TL;DR

The keurig filter cartridge location is usually inside the removable water reservoir, clipped into a small holder near the bottom or side of the tank.
Many Keurig models use a water filter starter kit, but some units ship with no filter, so an empty slot is normal on certain brewers.
Replacing the cartridge means removing the old one, rinsing the new cartridge for 60 seconds, soaking it for 5 minutes, then snapping it into the holder.
Keurig recommends replacing the charcoal water filter cartridge about every 2 months or after 60 tank refills, whichever comes first, according to Keurig guidance from 2026.
If your machine has no filter holder, check the user manual before trying to fit a cartridge into the reservoir.

[IMAGE: Close-up of a Keurig water reservoir with the filter holder visible inside the tank]

What Is the Keurig Filter Cartridge Location?

The keurig filter cartridge location is usually inside the removable water reservoir, not in the brew head or behind the cup tray. On most Keurig brewers, the cartridge clips into a small plastic filter holder that sits in the tank and treats the water before brewing.

That spot matters because many people look in the wrong place first. If you know the filter lives in the reservoir, you can inspect the tank, the holder, and the model-specific setup instead of opening random panels.

Common Filter Locations by Model

The filter cartridge location depends on the Keurig model, but the reservoir is the first place to check. Most compatible machines place the filter holder inside the water tank, usually along a side wall or near the bottom corner.

Here is a quick model guide for common setups.

Keurig model family	Usual filter cartridge location	Notes
K-Classic / K-Select / K-Compact	Inside the side or rear water reservoir	The holder usually clips into the tank wall.
K-Elite	Inside the removable reservoir	The holder is often attached near the lower edge of the tank.
K-Supreme / K-Supreme Plus	Inside the rear or side reservoir, depending on version	Some versions use a slightly different tank shape.
K-Duo / K-Duo Plus	Inside the water reservoir for the single-serve side	The carafe side may use a different setup.
Older or budget models	Sometimes no filter slot is included	Check the manual before searching for a missing part.

The practical rule is simple: if your Keurig has a removable water reservoir, the filter cartridge location is usually inside that reservoir. If the reservoir has no holder, your model may not use a filter cartridge at all.

How to Access the Holder

The holder is accessed by removing the reservoir and looking inside for a small plastic frame or cartridge cage. You do not need tools, and you should not pry at the machine body.

Start with the reservoir removed and empty enough to handle safely. Then inspect the inside walls and bottom edges for a clip-in frame, a narrow slot, or a small hinged piece that holds the cartridge.

Turn the machine off and unplug it if you want a safer cleanup.
Lift out the water reservoir.
Look inside the tank for a small black or gray plastic holder.
Find the opening or latch on the holder.
Open the holder if it is hinged, then slide the cartridge out.

[IMAGE: Diagram showing the water reservoir removed from a Keurig and the filter holder clipped inside the tank]

Some models make the holder obvious, while others place it low in the tank. If your fingers cannot reach it easily, tilt the reservoir toward a bright light and look for a rectangle-shaped insert.

The holder is the part you access first, not the cartridge itself. The cartridge sits inside the holder, so if you cannot find the holder, you have not found the right spot yet.

Replacing the Cartridge Correctly

The cartridge is replaced by removing the old one, preparing the new one, and snapping it back into the holder. The process is short, but the soaking step matters because it helps the charcoal filter work properly right away.

Keurig recommends replacing the filter cartridge about every 2 months or after 60 tank refills, whichever comes first (Keurig, 2026). That schedule is the one to follow unless your model manual says something different.

Use this order.

Remove the reservoir and open the filter holder.
Take out the old cartridge and discard it.
Rinse the new cartridge under cool running water for 60 seconds.
Soak the cartridge in fresh water for 5 minutes.
Insert the cartridge into the holder with the flat side aligned as directed by your model.
Close the holder and put the reservoir back in place.
Fill the tank with fresh water and reinstall it on the machine.

[IMAGE: Step-by-step photo sequence of rinsing, soaking, and installing a Keurig filter cartridge]

Do not skip the rinse and soak. Think of the cartridge like a dry sponge, because it needs water to start working evenly.

If your holder has an arrow or alignment mark, match the cartridge to that mark. A poor fit can stop the holder from closing properly or let the cartridge sit loose in the tank.

When the Machine Has No Filter

Some Keurig machines have no filter cartridge at all, and that is normal. If your reservoir has no slot, no holder, and no cartridge housing, the brewer likely was built without a filter system.

The first thing to do is check the model manual or the support page for your exact machine name. Keurig sells multiple brewers with different tank designs, so a missing slot does not always mean a broken part.

Here is how to tell the difference.

If the reservoir has a clip-in holder, your machine uses a filter cartridge.
If the reservoir has an empty molded pocket but no holder, your model may need a separate filter kit.
If the reservoir has no pocket or slot at all, your model may not accept a filter cartridge.

You should not force a cartridge into a tank that was not built for one. That can crack the reservoir, block the water path, or leave you searching for a part that was never meant to be there.

If you want cleaner-tasting water without a cartridge, use filtered bottled water or a separate pitcher filter. That is the practical fallback when the machine has no built-in filter slot.

Common Mistakes to Avoid When Looking for the Cartridge

The most common mistake is searching outside the reservoir first. The cartridge almost always lives in the tank, so checking the brew head, drip tray, or side panels wastes time.

Another common mistake is confusing the holder with the cartridge. The holder is the plastic housing, while the cartridge is the removable filter insert inside it.

A third mistake is installing the cartridge dry. The filter media needs the rinse and soak step before use, or the first tank of water may not flow through it as intended.

Do not use the wrong cartridge size or shape for your model. If the cartridge does not sit flush in the holder, stop and verify compatibility before closing the tank.

Where Different Keurig Parts Sit Inside the Machine

The reservoir, holder, and cartridge each have a different job, and that makes the search easier. The reservoir stores water, the holder keeps the filter in place, and the cartridge filters the water before it reaches the brew path.

[IMAGE: Simple labeled diagram of a Keurig reservoir, filter holder, and filter cartridge]

This layout helps because it shows why the cartridge is rarely visible at a glance. You see the reservoir first, the holder second, and the cartridge only after you open the holder.

If you are comparing parts, remember this sequence:

The reservoir is the removable water tank.
The holder is the small frame clipped inside the tank.
The cartridge is the removable filter insert inside the holder.

That order matters when you troubleshoot a machine that seems to be missing a part. Many users think the filter is gone when the holder is simply tucked low inside the reservoir wall.

How to Check Your Exact Model Before Buying a Replacement

Your exact model name matters more than the general Keurig family name. Two brewers from the same product line can use different reservoir shapes, and that changes the filter cartridge location and holder style.

Look for the model number on the bottom, back, or side of the brewer. Then compare that number with the replacement filter kit listed in the user manual or on Keurig’s support page.

If you are shopping in person or online, confirm three things before buying:

The filter kit matches your exact model number.
The kit includes both the holder and the cartridge if your machine needs both parts.
The reservoir shape matches the part photo or diagram.

That small check saves time because filter kits are not all interchangeable. A cartridge that fits one reservoir can sit loose or fail to lock into another.

Frequently Asked Questions About the Keurig Filter Cartridge Location

Where is the Keurig filter cartridge located?

The keurig filter cartridge location is usually inside the removable water reservoir. Look for a small plastic holder clipped to the tank wall or placed near the bottom corner.

How do I know if my Keurig has a filter cartridge?

Check the water reservoir for a slot or clip-in holder. If there is no holder at all, your model may not use a filter cartridge.

Do all Keurig models have a water filter?

No, not all Keurig models have a water filter. Some machines ship without a filter holder, so the reservoir only holds water and nothing else.

How often should I replace the cartridge?

Keurig recommends replacing the cartridge about every 2 months or after 60 tank refills, whichever comes first (Keurig, 2026). That schedule helps keep the water filter working as expected.

Can I use the machine without the filter cartridge?

Yes, many machines can brew without the cartridge installed. If your model supports a filter but you remove it, the machine usually still works, but the water does not pass through the charcoal filter.

What if the cartridge holder is missing?

If the holder is missing, check whether your exact model uses a filter kit or a different reservoir design. If the manual does not show a holder, the machine may have been sold without one.

Why is my Keurig filter not fitting back in?

A filter that will not fit usually means the wrong model, the wrong orientation, or a holder that is not fully open. Check the model number, then align the flat side of the cartridge with the holder marks before closing it.

Can I clean and reuse the filter cartridge?

No, the charcoal filter cartridge is meant for replacement, not cleaning and reuse. Once it reaches the replacement interval, swap it for a new cartridge instead of trying to wash out the old one.

Key Takeaways

The keurig filter cartridge location is usually inside the water reservoir, not in the brew head.
The holder is the part you access first, and the cartridge sits inside that holder.
Keurig recommends replacing the cartridge about every 2 months or after 60 tank refills (Keurig, 2026).
Some models have no filter cartridge or holder, so the manual is the best check before forcing a part.
If the tank has no slot, the machine may simply not use a filter cartridge.