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16x20x1 MERV 11 Pleated Air Filter

 

Actual Size: 15 1/2" x 19 1/2" x 3/4"

$49.98$8.33/ea
delivery truckFree Delivery
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Superior
Superior

RESIDENTIAL AND/OR COMMERCIAL USE

Change Every 3 Months

About

  • This is a list 16x20x1 MERV 11 air filter replacement for your furnace, air conditioner, heat pump, or HVAC system
  • Actual air filter size: 15 1/2" x 19 1/2" x 3/4"
  • MERV 11 synthetic media (comparable with MPR 1000/1200 and FPR 7) offers superior protection from dust, pollen, pet dander, mold, smog and more by trapping 95% of airborne particles without impacting air flow
  • High-quality construction means electrostatically charged pleated filter media, reinforced wire backing for structural integrity, and a durable frame to resist heat and humidity
  • Built to last 3 months. 300% longer than fiberglass models
  • 100% manufactured in the United States and designed with recyclable materials
  • Learn more about 16x20x1 Air Filters
Quantity

Top-Rated Filters. American Made. Delivered Free.

At Filterbuy, we don't cut corners—we craft high-quality air filters right here in the USA and ship them to your doorstep for free. No delays, no gimmicks—just clean air, made easy. With thousands of five-star reviews and filters built for real life & every HVAC system, it's no wonder why over 4 million families trust Filterbuy.

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Proudly Made In The USA

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All types of air filters from Filterbuy

Premium Materials That Go The Distance

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Save Up to 70% Per Filter with Packs

Things to Know About Filter Sizes

Finger pointing to nominal size

Nominal Size

  • The rounded size printed on your filter or HVAC unit (e.g., 16x20x1).
  • Usually whole numbers to make identifying and ordering easier.
  • A label for compatibility—not the exact measurement.
Finger pointing to actual size

Actual Size

  • The true, trimmed dimensions of the filter (e.g., 15 1/2" x 19 1/2" x 3/4" inches).
  • Filters are manufactured slightly smaller so they slide into the filter slot without forcing.
  • If you don't know your nominal size, measure your filter to get the actual size, then round up to find the nominal size to search on our site.
Help icon

Why the difference?

  • Nominal sizes simplify shopping and standardize categories.
  • Actual sizes ensure the filter fits properly inside your HVAC's filter rack.

How To Find Your Nominal Size When You Don't Know It

Air Filter Explaining Each Size
Nom 16"Act 15 1/2" "
Nom 1"Act 3/4"
Nom 20"Act 19 1/2" "
1

Measure length × width × depth with a tape measure to find the actual size.

2

Round up each dimension to the nearest whole number to get the nominal size. Example: 15 1/2" x 19 1/2" x 3/4" in → 16x20x1 nominal.

3

Search by nominal size on our site for the best fit.

Help icon
Pro tips: If your filter is missing or damaged, measure the filter slot opening the same way.

Why Getting the Right Size Matters

  • Too small? Air can bypass the filter, reducing air quality and efficiency.
  • Too big? It won't fit—risking bent frames and airflow issues.
  • Just right? You get maximum performance, better filtration, and cleaner air.
Free Exchange Policy

Free Exchange Policy

If the filter you buy doesn't fit, we'll send you a better size.

Need a Non-Standard Size?

Need a Non-Standard Size?

Build a custom filter in just a few clicks.

What's a MERV Rating?

MERV stands for Minimum Efficiency Reporting Value—but don't let the technical name fool you. It's just a way to rate how well an air filter traps stuff like dust, pollen, pet dander, and smoke. The higher the MERV number, the more particles it catches—and the cleaner your air will be.

Swipe To See More
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Bacteria
Odors
MERV 8

MERV 8

Comparable to:FPR: 4-7MPR: 600-1000



MERV 11

MERV 11

Comparable to:FPR: 6-9MPR: 1200-1550


MERV 13

MERV 13

Comparable to:FPR: 10MPR: 1900-2800

ODOR ELIMINATOR

ODOR ELIMINATOR

Comparable to:FPR: 10MPR: 1900-2800

What Makes Our Filters Last 90 Days? Quality, From the Inside Out

We build every Filterbuy filter to deliver reliable 90-day performance—thanks to smart design and premium materials that do the heavy lifting. Here's what makes the difference:

Pleated Design

More pleats = more surface area to capture dust and debris, keeping your air cleaner longer.

Electrostatically Charged Media

Pleats are magnetized to attract and trap microscopic particles—like pet dander, pollen, and smoke.

Synthetic Beverage Board Frame

Engineered to resist warping in extreme temperatures and high humidity.

Air Filter Wit Zoom In Key Features

Aluminum Dual Wire Backing

A layer of metal reinforcement keeps pleats evenly spaced and structurally sound—no sagging, even at high airflow.

Made in the USA

Assembled with care. Built to perform. Ships fast, free, and reliably from our U.S. facilities.

How to Install Your Filter in 4 Simple Steps

How to install your filter - Step 1 - return-vent

Turn Off Your HVAC SystemSafety first.

How to install your filter - Step 2 - return-vent

Remove The Old FilterLook for the airflow arrow and make note of the direction.

How to install your filter - Step 3 - return-vent

Slide In Your New FilterArrow should point toward the system (same direction as before).

How to install your filter - Step 4 - return-vent

Turn Your System Back OnAnd enjoy the fresh, clean air.

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Never forget to replace your air filter again.

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  • Edit, Skip, or Cancel Anytime.
Learn More

Pleated Filters vs. Fiberglass—What's the Difference?

Not all air filters are created equal. Pleated filters don't just last longer—they actually clean your air better. Here's how they stack up:

Pleated Filter

Pleated Filters

Efficiency:

High (MERV 8–13) – Traps more particles

Lifespan:

90 days – Long-lasting performance

Air Quality:

Excellent – Cleaner, healthier air

Materials:

Recyclable and durable

Fiberglass Filter

Fiberglass Filters

Efficiency:

Low (MERV 4 or less) – Misses small stuff

Lifespan:

30 days or less – Replace often

Air Quality:

Minimal – Basic protection only

Materials:

Thin, flimsy, and not recyclable

Pleated filters are a no-brainer—more protection, less hassle, and better air for your home.

How Often Should You Change Your Filter?

Changing your filter on time keeps your HVAC system running efficiently—and helps protect your lungs from dust, allergens, and airborne irritants. Here's how often to swap it out based on your needs:

Calendar Illustration Every 90 days

Every 90 Days

Standard Schedule

For most homes without pets or special air quality concerns. Great for general upkeep and energy efficiency.

Calendar Illustration Every 60 days

Every 60 Days

If You Have Pets or Allergies

Shedding fur, dander, and allergy triggers can build up fast. Changing your filter every two months helps keep the air fresher and symptoms at bay.

Calendar Illustration Every 30 days

Every 30 Days

If You Have Respiratory Concerns or Live in Smog/Wildfire Zones

For households affected by smoke, pollution, or respiratory conditions, monthly changes ensure maximum protection.

Help icon
Final tip:
Want to stay on track? Set a reminder—or skip the stress with auto-delivery so fresh filters show up right when you need them.

Don't Just Take Our Word For It...

Got More Questions? We've Got Answers.












Product Specifications

Nominal Size16 x 20 x 1 inches
Actual Size15 1/2" x 19 1/2" x 3/4" inches
Filter TypePleated
MediaElectrostatically Charged
FrameBeverage Board
MERV Ratings Available8, 11, 13, Carbon
LifespanUp to 90 Days
OriginMade in USA

Buy the Best 16x20x1 MERV 11 HVAC & Furnace Air Filters for Home from Filterbuy

At Filterbuy, we don’t just sell 16x20x1 MERV 11 HVAC and furnace filters—we manufacture them with the same standards we use in our own homes. Based on decades of hands-on experience and customer feedback, we’ve fine-tuned every layer of our filters to capture over 90% of airborne particles like dust, pollen, and pet dander, without restricting airflow or stressing your system. Unlike mass-produced alternatives, our filters are made in the USA, rigorously quality-tested, and shipped directly from our family-owned facility for peak performance you can feel. If you care about long-lasting protection and real indoor air quality, this is where your search ends.

TL;DR Quick Answers

Filterbuy's 16x20x1 MERV 11 air filters are manufactured in the United States and engineered to capture the airborne particles that matter most to your family's health — including dust, pollen, mold spores, pet dander, and fine lint. After manufacturing filters for over a decade and serving more than two million households, we recommend MERV 11 for most homes because it delivers meaningful filtration without restricting airflow to standard residential HVAC systems.

Here's what sets Filterbuy's 16x20x1 MERV 11 filter apart:

Filterbuy's 16x20x1 MERV 11 filters are available in single packs and multi-packs at filterbuy.com.

Top Takeaways

Talking about healthy indoor air, definitely not all air filters are the same. Our MERV 11 16x20x1 HVAC and furnace filters are made of a special material that can go deep and catch tiny airborne particles that are invisible to the naked eye—dust, mold spores, pet dander, and pollen. These filters are an ideal choice to upgrade if you are allergy-sensitive, if you have pets, or if your house is a high-traffic one.

The key difference that makes Filterbuy unique is our vertically integrated production nature: thus, we design, produce, and ship every filter directly from our U.S.-based facility, which guarantees the highest quality control and fastest delivery. The pleated design greatly enlarges the surface area for life span and more efficient filtration, while keeping the system free from resistance and operating at maximum efficiency.

If you are the one replacing your filters seasonally, or you are buying in bulk for a better price, Filterbuy facilitates hassle-free delivery of high-performance MERV 11 filters right at your door along with our promise of air quality, durability, and customer satisfaction.

An image of Filterbuy 16x20x1 MERV 11 HVAC and furnace air filter for home use

“We design our 16x20x1 MERV 11 filters with the same care we put into the ones we use in our own homes—because we know how much clean air matters. After decades of testing materials and studying airflow dynamics, we’ve learned that real filtration performance comes down to balance: capturing fine particles without straining your HVAC system. That’s the standard we build into every filter we ship.”

Why MERV 11 Filters Matter: Backed by Data & First-Hand Insight

At Filterbuy, we’ve seen how poor filtration affects homes and HVAC systems. Here’s what the data—and our experience tell us:

1. Indoor Air = 2–5x More Polluted Than Outside

2. You spend 90% of your Time Indoors

3. Dirty Filters Waste Energy & Money

Filterbuy’s Take

We build MERV 11 filters to hit the sweet spot—high-efficiency particle capture without restricting airflow. Trusted in our homes, tested in yours.

Final Thought & Opinion: Why We Trust the Filters We Build

Choosing an air filter isn’t just a routine task—it’s an investment in your home’s health and comfort.

Here’s What We’ve Learned First-Hand:

Why We Stand by Our Filters:

1. Made in the USA, in our facility for consistent quality.

2. Tested in real homes, including our own—what we ship is what we trust.

3. Built for long-term performance, not just quick fixes.

We don’t just sell filters—we use them. If it’s not good enough for our homes, it’s not going in yours.

Next Steps: Get Cleaner Air in 5 Simple Steps

1. Confirm Your Size

2. Choose MERV 11

3. Select Quantity

4. Order Online

5. Set a Reminder

Need Help?

Frequently Asked Questions

What does a 16x20x1 MERV 11 air filter do?

A 16x20x1 MERV 11 filter captures over 90% of airborne particles like dust, pollen, pet dander, and mold spores. It offers better protection than standard filters without restricting airflow, making it ideal for homes with allergies, pets, or high air quality needs.

How often should I replace my 16x20x1 MERV 11 filter?

Replace every 90 days under normal conditions. For homes with pets, allergies, or high usage, replace every 30–60 days for optimal performance and airflow.

Will a MERV 11 filter reduce HVAC efficiency?

No—Filterbuy’s MERV 11 filters are designed to maintain strong airflow while improving air quality. They strike a perfect balance between filtration strength and system efficiency.

Are Filterbuy air filters made in the USA?

Yes. Every Filterbuy filter, including our 16x20x1 MERV 11, is proudly made in the USA in our family-owned facility. This ensures consistent quality and fast, reliable shipping.

Can I buy 16x20x1 MERV 11 filters in bulk?

Absolutely. Filterbuy offers single and bulk pack options so you can save more and stock up for seasonal replacements—all with free, fast delivery.

Shop 16x20x1 MERV 11 Air Filters from Filterbuy

Your family deserves air that's filtered by people who are obsessed with getting it right — and after manufacturing filters for over a decade and serving more than two million households, we've built the 16x20x1 MERV 11 filter to prove it. Shop Filterbuy today and experience the difference American-made filtration makes in your home.