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Actual Size: 13 3/8" x 23 3/8" x 3/4"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 13 3/8" x 23 3/8" x 3/4"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 13 3/8" x 23 3/8" x 3/4"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
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.

Proudly Made In The USA

Fast, Free Shipping on Every Order

Premium Materials That Go The Distance

85,000+ 5-Star Reviews From Happy Customers

Save Up to 70% Per Filter with Packs




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

Round up each dimension to the nearest whole number to get the nominal size. Example: 13 3/8" x 23 3/8" x 3/4" in → 14x24x1 nominal.

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

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

Comparable to:FPR: 4-7
MPR: 600-1000
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Comparable to:FPR: 6-9
MPR: 1200-1550
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Comparable to:FPR: 10
MPR: 1900-2800
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Bacteria
Comparable to:FPR: 10
MPR: 1900-2800
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Odors
































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:
More pleats = more surface area to capture dust and debris, keeping your air cleaner longer.
Pleats are magnetized to attract and trap microscopic particles—like pet dander, pollen, and smoke.
Engineered to resist warping in extreme temperatures and high humidity.

A layer of metal reinforcement keeps pleats evenly spaced and structurally sound—no sagging, even at high airflow.
Assembled with care. Built to perform. Ships fast, free, and reliably from our U.S. facilities.

Turn Off Your HVAC SystemSafety first.

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

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

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

Efficiency:
High (MERV 8–13) – Traps more particles
Lifespan:
90 days – Long-lasting performance
Air Quality:
Excellent – Cleaner, healthier air
Materials:
Recyclable and durable

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.
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:

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

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.

For households affected by smoke, pollution, or respiratory conditions, monthly changes ensure maximum protection.
| Nominal Size | 14 x 24 x 1 inches |
| Actual Size | 13 3/8" x 23 3/8" x 3/4" inches |
| Filter Type | Pleated |
| Media | Electrostatically Charged |
| Frame | Beverage Board |
| MERV Ratings Available | 8, 11, 13, Carbon |
| Lifespan | Up to 90 Days |
| Origin | Made in USA |
Not all air filters are created equal, and at Filterbuy, we’ve proven it. Backed by years of customer feedback, lab-tested performance, and direct HVAC system insights, our 14x24x1 MERV 11 HVAC & Furnace Air Filters are engineered with a precise blend of filtration power and airflow efficiency that most generic brands simply can't match. While other filters sacrifice breathability for higher MERV ratings, our proprietary pleated design ensures you get cleaner air without straining your system. We’ve seen firsthand how consistent filtration reduces HVAC wear, lowers energy bills, and improves indoor comfort, especially for allergy-sensitive homes. This page will show you exactly why Filterbuy filters outperform the rest and how we deliver professional-grade protection straight to your home.
After manufacturing air filters for over a decade and serving more than two million households, we recommend the Filterbuy 14x24x1 MERV 11 filter for homeowners who want meaningful protection without overworking their HVAC system.
Why MERV 11 in this size?
Captures up to 85% of airborne particles between 3–10 microns — including dust, pollen, mold spores, and pet dander
The 14x24x1 form factor fits a wide range of residential furnaces and air handlers
MERV 11 strikes the right balance: better filtration than MERV 8, without the airflow restriction of MERV 13+
Why Filterbuy?
American-made in our own facilities — we control quality from raw material to your door
Precision-cut to true size, so filters seat flush with no air bypass gaps
Available in multi-packs with flexible subscription delivery, so you never miss a change
Recommended change interval: Every 60–90 days, or every 30–45 days in homes with pets or allergy sufferers.
The right filter, changed on schedule, is one of the simplest and most effective steps you can take to protect your family's air and extend the life of your HVAC system.
MERV 11 = High Efficiency Captures up to 85% of dust, pollen, pet dander, and mold.
Custom Fit Matters Filterbuy filters are cut to size in the USA for a perfect fit and better airflow.
Cleaner Air, Healthier Home Ideal for allergies, pets, and families needing higher indoor air quality.
Replace Every 90 Days Keeps your HVAC system running efficiently and air fresh year-round.
Trusted by Pros & Homeowners Backed by research and real-world results across thousands of homes.
If you want to ensure that your house air quality and HVAC unit stay performing at their best, the 14x24x1 MERV 11 air filter is the perfect combination of efficiency and airflow. This filter, which was made to capture 95% of the particles in the air, such as dust, pollen, pet dander, mold spores, and smoke, goes way beyond the basic filtration without limiting the airflow as it does with higher-MERV options.
Filterbuy products are made in the USA with high-quality, electrostatically charged pleated media and sturdy beverage board frames. What is the result? A longer service time, a regular performance, and less need for replacements in the future. Our products are not like off-the-shelf filters; they are specially cut to the exact dimensions, thus allowing us to guarantee that there is no leakage and that the pollutants are kept out and the efficiency is not reduced.
Whether the reason for the change of the filter is seasonal maintenance or the improvement of the indoor air quality daily, the MERV 11 upgrade is the one that is backed by the HVAC professionals and the homeowners. Indeed, it is an easy change that provides healthier air and a more efficient system—it is shipped quickly, directly from our family-run facility.

"After manufacturing millions of filters for homes across the country, we’ve learned that real performance isn’t just about capturing more particles—it’s about doing it efficiently without overworking your HVAC system. Our 14x24x1 MERV 11 filters are built from the ground up based on direct feedback from homeowners, HVAC techs, and field-tested performance in all climates. It’s not just a filter—it’s the result of continuous improvement and a deep understanding of how clean air impacts real homes."
Why MERV 11 filters are the smart choice—according to research and real-world results:
Proven Particle Capture
Collect 65% of 1.0–3.0-micron particles (dust, smoke, pet dander).
Removes 85 % of particles 3.0-10.0 microns (pollen, mold spores).
Source: EPA.gov – MERV Rating Guide
Healthier Indoor Air
MERV 11 filters remove allergens from the air and therefore reduce respiratory irritants.
The users of the product say that their allergy and asthma symptoms have become less severe after they have changed to the product.
Proper Fit and Maintenance Matter
Undersized or dirty filters hurt performance and air quality.
A correct fit ensures air passes through the filter, not around it.
Routine changes (every 90 days) keep filtration effective.
Filterbuy Perspective:We’ve seen thousands of homes benefit from the right filter—fewer HVAC repairs, better airflow, and cleaner air. These aren’t just stats. They reflect what our customers experience every day.
Choosing the right air filter isn’t just about specs—it’s about long-term comfort, health, and HVAC efficiency. The 14x24x1 MERV 11 filter delivers all three.
Here’s why it stands out:
Balanced Performance
Captures allergens and fine particles without restricting airflow.
Ideal for households with pets, allergies, or high air quality concerns.
Built on Real Experience
Tested in homes nationwide—from dusty rural zones to urban apartments.
Designed from customer feedback and professional HVAC standards.
Reliable, Long-Term Value
Customers report fewer allergy symptoms and better HVAC performance.
High-quality materials extend filter life and reduce system wear.
Why Filterbuy trusts MERV 11 filters:
We’ve manufactured millions and tracked real-world results.
Homeowners who upgrade rarely go back—they notice the cleaner air.
Our filters are custom-cut for a perfect fit and consistent performance.
Bottom line: If you want cleaner air, better system health, and less hassle, Filterbuy’s MERV 11 filter delivers real results, backed by both science and everyday experience.
Follow these quick steps to get cleaner air and better HVAC performance:
Check Your Filter Size
Make sure you need a 14x24x1 filter.
Measure your current filter or refer to your HVAC manual.
Choose MERV 11
Ideal for homes with allergies, pets, or high air quality needs.
Balances strong filtration with smooth airflow.
Order from Filterbuy
Get factory-direct filters, made in the USA.
Fast shipping and optional auto-delivery are available.
Replace Every 90 Days
Change filters quarterly for best results.
Replace sooner in homes with pets or heavy use.
Need Help?
Contact our support team for expert advice.
Visit our Filter Education Hub for tips and how-tos.
A MERV 11 filter captures a high percentage of particles like dust, pollen, pet dander, mold spores, and even smoke. It offers stronger filtration than MERV 8 while maintaining good airflow, making it ideal for households with pets, allergies, or those seeking cleaner indoor air without straining the HVAC system.
We recommend replacing it every 90 days for average use. If you have pets, allergies, or run your HVAC system constantly, consider replacing it every 60 days. Regular replacement keeps your air clean and your system running efficiently.
No, not when properly maintained and installed. Unlike higher-rated filters (MERV 13+), a MERV 11 filter is designed to balance high filtration with efficient airflow. Filterbuy’s pleated design ensures optimal performance without putting extra strain on your unit.
Filterbuy filters are custom-made in the USA with high-quality materials and precise sizing for a snug, leak-free fit. They last longer, perform more consistently, and are manufactured with HVAC standards in mind, based on years of real-world customer feedback and system testing.
Check your current filter’s dimensions printed on the frame, or measure it manually (length x width x depth in inches). If it reads 14x24x1 or matches those dimensions closely, this is the correct size. Still unsure? Our customer support team is happy to help you verify before purchase.
Order your 14x24x1 MERV 11 air filters today and experience the difference American-made quality makes in your home's air. Shop Filterbuy now and join over two million households breathing cleaner, healthier air.