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16x25x5 MERV 11 Air Filters

Name: 16x25x5 MERV 11 Air Filter
Brand: Filter King
SKU: FK16X25X5-HW-M13
Price: 47.63 USD
Availability: InStock
Rating: 4.740845 (355 reviews)

Actual size: 15.88 x 24.88 x 4.38 inches

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Filter guide

MERV 8 MERV 11 MERV 13 ODOR ELIMINATOR

Advanced

Deep pleated air filters for whole-house and commercial HVAC systems

Learn more

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16x25x5 air filter description

SKU

FK16X25X5-M11
MERV rating

MERV 11
MPR rating

MPR 1000-1200
FPR rating

FPR 7
Filtration efficiency

95%
Odor eliminator

No
Captured particle size

1-10 microns
Lifespan

6-12 months

What does MERV 11 protect against?

MERV 11 filters remove up to 95% of common particles including fine dust, smoke, and smog particles. These filters reduce allergy symptoms and protect against outdoor air pollution.

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Fast & free shipping

Processed quickly, ships fast, free for all orders
Easy to return/exchange

Return your items within 30 days and get a full refund
All sizes available

Find your perfect fit with our complete size range

Who is the 16x25x5 MERV 11 best for?

MERV 11 air filters are designed for homes with allergies and in some cases, asthma. Those with respiratory illnesses or compromised immune systems may benefit from MERV 11 air filters due to these filters being significantly more powerful than alternative MERV filters at capturing smaller particles, such as MERV 8.

When to replace your 5-inch air filter?

A 5-inch filter offers the longest run time of any size we carry. Even so, your household conditions affect how soon it needs a change.

Asthma or allergies

Every ~6 months

Even with the extra depth, allergy-sensitive households should replace a 5-inch filter about every 6 months.
Pets

Every ~8 months

A 5-inch filter can handle a lot of pet hair before it's due, so most pet owners can go about 8 months between changes.
Young children

Every 8–12 months

In households with young children, plan to change a 5-inch filter every 8 to 12 months for the cleanest air.

What happens if you don’t replace on time?

Your filter catches dust every day, but it can only hold so much. Once it's full, dirty air keeps circulating and your system has to work harder – leading to problems that spread through your whole home.

Higher energy bills

A clogged filter makes your system work much harder to push air through. That extra effort shows up on your energy bill.
Costly system breakdowns

When air can't flow through, your AC can freeze up in summer and your furnace can overheat in winter.
Stuffy, uncomfortable rooms

A dirty filter weakens your system's airflow, so some rooms end up too hot, too cold, or just plain stuffy.

MERV rating comparison

Recommended for

Comparable ratings

Filtration efficiency

Dust mites

10+ microns

Pollen

10-100 microns

Pet dander

5-10 microns

Lint and fabric fibers

10+ microns

Mold spores

3-10 microns

Fine dust

1-3 microns

Smoke particles

0.3-1 micron

Smog and fine particles

0.1-1 micron

Bacteria

0.3-5 microns

Virus carriers

0.3-1 micron

Wildfire smoke

0.4–2.5 microns

Odors and gases

Molecular level

VOCs

Molecular level

Cooking odors

Molecular level

Learn more

Basic air quality,
standard homes

FPR 5,
MPR 600

90% of common particles

MERV 8 filters

Better air quality, homes with allergies, pets

FPR 7,
MPR 1000-1200

95% of common particles

MERV 11 filters

Superior air quality, health concerns, allergies

FPR 10,
MPR 1500-1900

98% of common particles

MERV 13 filters

Odor control, cooking smells, pet areas

FPR 5 + Carbon,
MPR 600 + Odor

90% of common particles

Odor eliminator filters

What makes Filter King so good?

It comes down to using better materials. Click around to see how we build a stronger filter that actually protects your home.

Front beverage board frame

The diagonal straps die-cut into the frame bond to each pleat tip, keeping them evenly spaced so the filter won't bow.

MERV 11 pleated media

Rated to capture up to 95% of common particles, MERV 11 media catches dust mites, pollen, pet dander, and mold spores, as well as fine dust and smoke.

Wire support grid

An expanded wire grid bonds to the media, stopping the pleats from shifting or pulling away under airflow.

Back beverage board frame

The same heavy-duty, moisture-resistant beverage board on the exit side holds its shape and keeps a tight seal in your vent or wall slot.

Activated carbon layer

A layer of activated carbon absorbs odor molecules from cooking, pets, and chemical fumes – catching what the filter media alone can't.

Customer reviews

How to find your air filter size?

Check the label on your current filter or use a tape measure to get the exact length, width, and depth before selecting your size.

Nominal size

Nominal size is what you normally see printed on the label. This is usually a rounded size which is often not the true size of your filter.

Actual size

Actual size is the true size of the air filter, usually written in smaller font below the nominal size.

Measuring

Measure your current air filter or the length, width, and depth of the opening slot to get the actual size. Round it up to the nearest whole inch to get the nominal size.

How to install 16x25x5 air filter?

Installing 16x25x5 air filters couldn't be easier. Just make sure to align the arrow printed on the side with the airflow direction!

1

Remove the air filter from the package
2

Locate the arrow and point it in the direction of the fan
3

Slide the filter in to the slot of the central unit
4

For return grills, insert the filter into the grill, pointing the arrow inwards

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Need to remember to reorder every time you run out
Forget to reorder, and a dirty filter can drive up your energy bills.

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Frequently asked questions

Frequently Asked Questions (FAQs)

Can I use a 16x25x4 filter instead of 16x25x5?

No, a 16x25x4 filter will not fit properly if your media cabinet or HVAC system is designed for a 5-inch filter. A smaller filter will leave gaps, making your filter much less efficient. Always verify the proper size of the filter you require before replacing an existing filter.

What is the actual size of a 16x25x5 air filter?

The actual size of a 16x25x5 filter is 15.5x24.5x4.75 inches. These measurements are designed for a proper fit in media filters that require a 16x25x5 filter.

Will a 16x25x5 MERV 13 filter restrict airflow in compact systems?

No, the 5-inch pleated depth provides adequate surface area to maintain airflow, even with higher MERV ratings being considered. Compact systems can handle MERV 11 and MERV 13 filters without causing unnecessary strain on your system.

Why are 16x25x5 filters more expensive than 1-inch filters?

16x25x5 filters are more expensive than 1-inch filters as they provide an extended surface area with the use of premium materials. Reinforced paperboard frames are also included. In addition, 5-inch pleated filters provide between four and five times more the filtration media. Additionally, replacing a 16x25x5 filter is often only required once every 6 to 12 months, depending on system runtime and household environmental factors.

Does a narrower 16x25x5 filter work as well as 20x25x5?

Yes, both filter sizes perform similarly in terms of lifespan. Choosing a width that matches your HVAC cabinet's design is ideal for the best seal and for proper airflow (without causing strain on the system).

Are 16x25x5 filters harder to install than wider 5-inch filters?

No. 16x25x5 air filters can be installed as any other air filter. Installation is straightforward and involves sliding out and replacing old filters with a new filter while ensuring the airflow arrow is pointed toward the furnace or motor blower. When a filter fits in its designed media cabinet, you should experience little to no resistance as you replace it.

Do all 16x25x5 filters fit Honeywell and Aprilaire systems?

No, not all 16x25x5 filters fit every whole-house air cleaner. Honeywell, Aprilaire, and Lennox cabinets may all vary slightly, which is why paying close attention to the descriptors on your frames matters. Take a bit of time to match your system's model number to ensure the correct fit when shopping for a new air filter product, even when doing so via Filter King.

Will a 16x25x5 filter improve my indoor air quality significantly?

Yes. A 16x25x5 filter captures more pollutants, dust, and allergens over time than thinner, 1-inch filters. Its deep-pleated design ensures consistent filtration, improving your IAQ, or Indoor Air Quality, in less time.

16x25x5 MERV 11 Air Filters

Choose filter quality

Advanced

Select quantity

16x25x5 air filter description

What does MERV 11 protect against?

Choose how to buy

Who is the 16x25x5 MERV 11 best for?

When to replace your 5-inch air filter?

Asthma or allergies

Pets

Young children

What happens if you don’t replace on time?

Higher energy bills

Costly system breakdowns

Stuffy, uncomfortable rooms

MERV rating comparison

What makes Filter King so good?

Front beverage board frame

MERV 8 pleated media

MERV 11 pleated media

MERV 13 pleated media

MERV 8 pleated media

Wire support grid

Back beverage board frame

Activated carbon layer

Customer reviews

How to find your air filter size?

Nominal size

Actual size

Measuring

How to install 16x25x5 air filter?

Set it and forget it with auto-delivery

Without auto-delivery

With auto-delivery (save 5%)

Frequently Asked Questions (FAQs)

Can I use a 16x25x4 filter instead of 16x25x5?

What is the actual size of a 16x25x5 air filter?

Will a 16x25x5 MERV 13 filter restrict airflow in compact systems?

Why are 16x25x5 filters more expensive than 1-inch filters?

Does a narrower 16x25x5 filter work as well as 20x25x5?

Are 16x25x5 filters harder to install than wider 5-inch filters?

Do all 16x25x5 filters fit Honeywell and Aprilaire systems?

Will a 16x25x5 filter improve my indoor air quality significantly?