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Actual Size: 9 1/2" x 19 1/2" x 3/4"
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Factory-Direct Low Prices, Made in the USA
Hassle-Free Returns & Free Exchanges
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
Actual Size: 9 1/2" x 19 1/2" x 3/4"
Free Delivery Factory-Direct Low Prices, Made in the USAHassle-Free Returns & Free ExchangesRESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
Actual Size: 9 1/2" x 19 1/2" x 3/4"
Free Delivery Factory-Direct Low Prices, Made in the USAHassle-Free Returns & Free ExchangesRESIDENTIAL 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: 9 1/2" x 19 1/2" x 3/4" in → 10x20x1 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 & DebrisDust Mites & ParticlesPollenMoldLintDander
Smoke & Smog
Comparable to:FPR: 10
MPR: 1900-2800
Dust & DebrisDust Mites & ParticlesPollenMoldLintDanderSmoke & Smog
Bacteria
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 | 10 x 20 x 1 inches |
| Actual Size | 9 1/2" x 19 1/2" x 3/4" inches |
| Filter Type | Pleated |
| Media | Electrostatically Charged |
| Frame | Beverage Board |
| MERV Ratings Available | 8, 11, 13 |
| Lifespan | Up to 90 Days |
| Origin | Made in USA |
Tired of air filters that promise clean air but fall short after just a few weeks? At Filterbuy.com, we’ve seen it all—and that’s why we engineered our 10x20x1 MERV 13 HVAC and furnace air filters to deliver lasting performance you can count on. Based on years of customer feedback and in-house testing, we’ve refined every layer of our filters to trap allergens, bacteria, and fine particles more effectively—without restricting airflow. If you're serious about improving indoor air quality for your family, you're in the right place. This page brings you our best-selling filters, trusted by homeowners and HVAC professionals alike.
MERV 13 filters block 98% of dust, allergens, and pollutants.
Made in the USA with durable, high-efficiency materials.
Engineered from real customer feedback and field-tested results.
Trusted by HVAC pros and homeowners for hospital-grade air.
Ships fast, installs easily, and delivers cleaner air instantly.
The 10x20x1 MERV 13 HVAC and furnace air filters produced by Filterbuy are professionally designed to trap as much as 98 percent of air particles such as dust, pollen, pet dander, mold spores, smoke, and even virus carriers. These filters are constructed using electrostatically charged synthetic media and enforced with long-lasting frames and perfectly suited to homes that desire hospital-quality air but without losing the airflow.
Our filters are proudly manufactured in the USA, and are the highest quality on the market, fitting into most residential systems, and are of the highest standards in industry. Are you dealing with allergies, want to protect your HVAC systems, or just want to improve the air quality in your home, then the MERV 13 filters offered by Filterbuy are a high performance, high quality product trusted by thousands of homeowners.
Order now and feel the Filterbuy difference: cleaner air, longer lasting filters and peace of mind with every breath.
"After years of manufacturing filters and listening to real homeowner concerns, we designed our 10x20x1 MERV 13 filters to strike the perfect balance between high-efficiency particle capture and optimal airflow. It’s not just about filtration—it’s about creating a healthier, more breathable home environment you can trust."
At Filterbuy, we’ve seen how clean air transforms homes. These key stats—and our hands-on experience—show why MERV 13 filters make a real difference:
Many homes have unseen pollutants.
We’ve tested homes with high levels of dust, pet dander, and mold.
EPA confirms indoor air can be 2 to 5 times more polluted. 👉 epa.gov
Most people don’t realize how much time they spend inside.
Poor indoor air affects your health daily.
EPA estimates 90% of your day is spent indoors. 👉 EPA Source
We’ve seen families breathe easier with our MERV 13 filters.
These filters reduce common asthma and allergy triggers.
AAFA reports asthma is on the rise. 👉 aafa.org
Bottom line: Our filters aren’t just built to industry standards—they’re built based on what real homes need for cleaner, safer air.
Choosing the right air filter isn’t just a maintenance task—it’s a decision that affects your home’s health and your family’s well-being.
Cleaner air, fewer allergens. We've seen homes with pets, kids, or allergy sufferers experience noticeable relief within days of upgrading.
Built for real-life conditions. Our MERV 13 filters are designed after years of field testing and customer feedback—not just lab specs.
More than filtration—it's protection. These filters help block pollutants, extend HVAC lifespan, and maintain consistent airflow.
MERV 13 should be the new standard for most homes—not just a premium option.
Clean air isn’t a luxury, it’s essential—and Filterbuy makes it accessible.
We back every filter because we’ve seen firsthand the difference it makes.
When you choose Filterbuy, you’re not just buying a filter. You’re choosing performance, trust, and air you can feel good about breathing.
Follow these simple steps to improve your home’s air quality today:
Check Your Filter Size
Make sure 10x20x1 is the right size.
Look at your old filter or HVAC manual to confirm.
Pick Your Quantity
Choose a 3, 6, or 12-pack.
Change every 60–90 days for best results.
Order Online
Tap “Add to Cart” and check out securely.
Fast, free U.S. shipping included.
Install Easily
No tools needed.
Follow the airflow arrow on the frame.
Set a Reminder
Use your phone or calendar.
Stay on schedule for cleaner, healthier air.
MERV 13 is a high-efficiency rating that indicates the filter can capture up to 98% of airborne particles as small as 0.3 microns, including dust, pollen, mold, pet dander, smoke, and even virus-carrying particles.
Not when properly sized and replaced regularly. Our 10x20x1 MERV 13 filters are engineered to balance strong filtration with excellent airflow, making them safe for most residential HVAC systems.
We recommend replacing your filter every 60 to 90 days. If you have pets, allergies, or live in a high-pollution area, consider changing it more frequently—every 30 to 60 days.
10x20x1 refers to the nominal size. The actual size may be slightly smaller to ensure a proper fit in your system. Always double-check your old filter’s dimensions before ordering.
Yes! All of our 10x20x1 MERV 13 filters are proudly made in the USA using high-quality materials and industry-standard manufacturing practices for long-lasting performance.
