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Actual Size: 17.25x19.25x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 17.25x19.25x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 17.25x19.25x1"
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: 17.25x19.25x1" in → 17.25x19.25x1 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























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 | 17.25 x 19.25 x 1 inches |
| Actual Size | 17.25 x 19.25 x 1" 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 |
At FilterBuy, we’re obsessed with providing your home with the best possible air quality—and that starts with the right filter. Our 17.25x19.25x1 MERV 13 HVAC & Furnace Air Filters are designed to capture more airborne particles than standard filters, including dust, pollen, pet dander, and more, ensuring that your home's air is cleaner and healthier.
Backed by over a decade of manufacturing expertise and real-world feedback from millions of customers, our MERV 13 filters help keep your HVAC system running smoothly while enhancing the air your family breathes. These filters not only improve air quality but also optimize your system’s efficiency, reducing strain and potentially lowering energy costs.
Trust FilterBuy for your family’s air protection needs. We’re committed to making invisible pollutants visible and providing you with the solutions that help safeguard your home. With our MERV 13 filters, you’re actively protecting your loved ones with a simple, effective solution that keeps them breathing easier, day after day.
Superior Air Quality: Our MERV 13 filters capture up to 90% of airborne particles like dust, pollen, and pet dander, significantly improving your home's air and reducing allergy symptoms.
Energy Savings & HVAC Efficiency: By enhancing your HVAC system’s efficiency, our MERV 13 filters can help save up to 15% on energy costs and extend the lifespan of your HVAC system.
Easy Installation & Maintenance: Installing and replacing your MERV 13 filters is a breeze, with simple upkeep every 1-3 months to maintain peak performance.
Expert-Engineered Filters: Designed with over a decade of air filtration expertise, FilterBuy’s MERV 13 filters are built to protect your home and improve your family’s health.
Longer Filter Lifespan: Thanks to their higher rating, MERV 13 filters last longer than lower-rated filters, reducing the need for frequent replacements and providing ongoing protection.
To protect your family’s health and improve air quality, it’s essential to understand MERV ratings. MERV (Minimum Efficiency Reporting Value) measures an air filter’s ability to capture particles. The higher the MERV rating, the better the filter is at trapping airborne pollutants.
MERV 1-4: Basic filters that capture larger particles like lint and dust.
MERV 5-8: More effective at trapping dust, pollen, and mold spores.
MERV 9-12: Great at capturing finer particles, including pet dander and smoke.
MERV 13-16: Ideal for trapping tiny allergens and fine particles like bacteria, smoke, and even some viruses.
Choosing the right MERV rating can make a significant difference in your indoor air quality. A filter with the right rating ensures cleaner, healthier air, helping to create a more comfortable living space for you and your family.
MERV 13 air filters are a powerful solution for improving your home’s air quality. Here’s why they stand out:
Effective Allergy Control: MERV 13 filters capture tiny allergens such as dust, pollen, and pet dander, helping to reduce symptoms and improve overall health.
Longer Lifespan: These filters last longer than lower-rated filters, meaning fewer replacements, which saves you money and reduces waste.
Finding the right air filter can feel overwhelming, but FilterBuy makes it simple. With a broad selection of filters tailored to your home’s needs, we offer:
A Wide Range of Products: Whether you're looking for specific sizes or MERV ratings, we have options that fit your HVAC system perfectly.
Expert Support: Our knowledgeable team is ready to help answer your questions and guide you toward the best choice.
Convenient Shopping: Our website is designed for easy navigation, so you can order your filters from home with confidence.
At FilterBuy, we don’t just sell filters—we empower you to make informed choices for better air quality.
Proper installation is key to ensuring your air filter works effectively. Follow these simple steps:
Check the Filter Orientation: Look for arrows on the filter frame indicating airflow direction. Make sure these arrows face toward the HVAC system.
Turn Off the System: Always switch off your HVAC system before replacing the filter to prevent any accidents.
Remove the Old Filter: Take out the old filter and note how it fits, so you can install the new one correctly.
Insert the New Filter: Slide the new filter into place, ensuring it fits snugly and follows the correct orientation.
Seal the Access Panel: Close any access panels securely to complete the installation.
To maintain great air quality throughout the year, it’s important to stay proactive. Here are three easy strategies to help you:
Regular Filter Replacement: Change your HVAC filters every 1-3 months, particularly during peak seasons. This helps remove dust, allergens, and pollutants.
Control Humidity Levels: Keep humidity between 30-50% using dehumidifiers or humidifiers as needed. This helps prevent mold growth and keeps the air comfortable.
Ventilate Your Home: Open windows when the weather allows to bring in fresh air, and always use exhaust fans in kitchens and bathrooms to eliminate stale air.
By staying on top of these simple practices, you’ll ensure your home’s air quality remains excellent, no matter the season.

"With over a decade of experience in air filtration, we know that the MERV 13 filter strikes the ideal balance for residential homes. It captures allergens like pollen and dust effectively, while also maintaining your HVAC system’s efficiency. For allergy sufferers, this filter can make a world of difference in improving air quality and comfort. Just be sure that your HVAC system is equipped to handle the airflow demands, and you’ll enjoy cleaner, healthier air for your family."
Improved Respiratory Health
MERV 13 filters can reduce airborne allergens by 50-60%, significantly improving air quality.
The American Lung Association highlights a marked improvement in respiratory health for those with asthma or allergies when using higher-rated filters like MERV 13.
FilterBuy customers consistently report breathing easier after switching to MERV 13 filters. Source: American Lung Association
Enhanced Particle Removal
MERV 13 filters capture up to 90% of particles as small as 1 micron, including fine allergens like dust, pollen, and mold spores.
The EPA confirms that MERV 13 filters are highly effective at trapping these invisible particles, which can aggravate allergies.
By eliminating these fine particles, MERV 13 filters help create a healthier living environment. Source: EPA
Lower HVAC System Maintenance Costs
MERV 13 filters promote better airflow, reducing strain on your HVAC system.
According to the Department of Energy, MERV 13 filters can lead to energy savings of up to 15% annually, helping lower overall utility costs.
Clean filters also extend the lifespan of HVAC systems, decreasing the frequency of costly repairs and maintenance. Source: Department of Energy
The 17.25x19.25x1 MERV 13 HVAC & Furnace Air Filters from FilterBuy stand out as a top choice for elevating your home’s air quality. Here’s why:
Superior Filtration
MERV 13 filters capture even the smallest airborne particles, ensuring cleaner air and a healthier living environment.
These filters reduce common allergens like dust, pollen, and pet dander, offering much-needed relief for allergy sufferers.
Energy & Cost Savings
MERV 13 filters help improve HVAC system efficiency, potentially saving you up to 15% on energy costs annually.
With less strain on your HVAC system, you can expect fewer repairs and a longer lifespan for your system.
First-Hand Experience
Many customers report immediate improvements in air quality and noticeable reductions in allergy symptoms.
With years of experience in the air filtration industry, I can confidently say that MERV 13 filters are a smart investment in both your home’s health and long-term efficiency.
In short, choosing a MERV 13 filter isn’t just about cleaner air—it’s a proactive step toward protecting your home and loved ones from unseen air quality issues.
1. Select Your Filter Size
Check your HVAC system for the correct filter size (17.25x19.25x1).
Use our size guide to find the perfect match for your system.
2. Choose MERV 13 for Maximum Protection
Opt for the MERV 13 filter to ensure superior filtration and cleaner, healthier air for your home.
3. Order Online
Visit Filterbuy to easily order your air filter with just a few clicks.
4. Install Your Filter
Follow our straightforward installation guide for a smooth, hassle-free setup.
5. Set a Reminder for Regular Replacements
Keep your air clean by changing your filter every 1-3 months for optimal performance and air quality.
For most residential use, the ideal MERV rating typically ranges from 8 to 13. MERV 13 is especially beneficial for allergy sufferers and those seeking optimal filtration for cleaner indoor air.
No, MERV 13 is not too high for residential use. It provides excellent filtration, making it an ideal choice for homes with allergy or respiratory concerns.
MERV 13 filters are designed to capture fine particles such as pollen, dust, pet dander, and mold spores, making them perfect for improving indoor air quality in homes.
HEPA filters are better at capturing even smaller particles than MERV 13 filters. However, HEPA filters are generally used in air purifiers, while MERV 13 is a more practical option for residential HVAC systems.
The best AC filter depends on your specific needs. For general use, a MERV 8-11 filter is typically sufficient. However, if you’re looking to improve air quality, especially for allergy relief, a MERV 13 filter is an excellent choice.
No, MERV 11 is not too high for residential use. It offers good filtration for dust, pollen, and mold without significantly restricting airflow.
Yes, MERV 13 filters are effective at capturing mold spores, as well as other common allergens like pollen, dust, and pet dander.
Most modern AC systems can handle a MERV 13 filter. However, older units may experience reduced airflow. It’s a good idea to consult with your HVAC technician to ensure compatibility.
Typically, a MERV 13 filter lasts about 3 months, though this can vary depending on air quality and system usage.
MERV 13 filters may cause slight airflow restriction, particularly in older HVAC systems. However, they strike a good balance between effective filtration and maintaining airflow.
Yes, using a filter with too high of a MERV rating can restrict airflow and put stress on your HVAC system, especially if your system isn’t designed to handle it.
A MERV 11-13 filter is ideal for allergy sufferers, as it effectively captures airborne particles like pollen, dust, pet dander, and mold spores, improving air quality and reducing allergy symptoms.