Shop by





Actual Size: 17.25x23.25x0.75"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 17.25x23.25x0.75"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 17.25x23.25x0.75"
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: 17.25x23.25x0.75" in → 17.25x23.25x1 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 23.25 x 1 inches |
| Actual Size | 17.25 x 23.25 x 0.75" 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 |
Most people don’t think twice about the air filter tucked inside their HVAC system—but at FilterBuy, it’s all we think about. Every 17.25x23.25x1 MERV 13 HVAC & Furnace Air Filter is precision-engineered and hand-inspected in our family-owned U.S. manufacturing facilities to deliver cleaner, healthier air for your home.
After more than a decade of perfecting air filtration and listening to millions of customers, we’ve learned what truly makes the difference: a filter designed for real-world performance, not just lab results. This isn’t a one-size-fits-all product—it’s the result of craftsmanship, rigorous testing, and a relentless obsession with better air for all.
A MERV 13 filter doesn’t just trap microscopic dust, pollen, and bacteria—it transforms how your home feels. By reducing airborne irritants, balancing air pressure, and supporting your HVAC system’s efficiency, it helps protect what matters most: your family’s health, your home’s comfort, and your system’s longevity.
With hospital-grade filtration and long-lasting durability, every FilterBuy filter delivers peace of mind you can feel in every breath. Because when it comes to your air, we don’t settle for good enough—we build it better.
Removes Up to 98% of Airborne Irritants: Our MERV 13 filters capture fine particles like dust, pollen, pet dander, and even microscopic pollutants—helping your family breathe cleaner, healthier air every day.
Engineered for Peak Performance in the USA: Every filter is proudly designed and manufactured in our U.S. facilities, ensuring consistent quality, precision fit, and dependable airflow you can trust.
Proven Protection Backed by Research: Studies from the EPA and CDC show that MERV 13 filtration removes up to 95% of airborne contaminants—offering hospital-grade protection for your home.
Custom Fit for Maximum Efficiency: The exact 17.25" × 23.25" × 1" dimensions ensure a secure seal and optimal HVAC system performance, preventing leaks and maximizing energy efficiency.
Easy Maintenance for Long-Term Health: Replace your filter every 3–6 months to keep air quality high, reduce strain on your system, and maintain a cleaner, more comfortable home environment.
If you want to protect your family’s health and your HVAC system, understanding MERV ratings is key. MERV—short for Minimum Efficiency Reporting Value—measures how effectively a filter captures airborne particles. Ratings range from 1 to 20, with higher numbers indicating stronger filtration power.
At FilterBuy, we focus on real-world performance. For example, a MERV 13 filter captures microscopic particles such as dust, pollen, mold spores, and pet dander—keeping your indoor air noticeably cleaner and healthier.
Your ideal MERV rating depends on your home’s needs.
Allergy or asthma concerns? Choose MERV 13 for advanced protection.
Older HVAC system or light filtration needs? A lower rating may work better to maintain airflow.
Pro Tip: Always confirm your system’s specifications before upgrading—proper compatibility ensures both clean air and smooth system performance.
A MERV 13 filter does more than catch dust—it actively supports your home’s health and efficiency.
Cleaner, Healthier Air: Traps up to 98% of fine particles that trigger allergies and respiratory irritation.
Energy Efficiency: By reducing buildup in your system, your HVAC runs smoother—saving energy and lowering utility costs.
Family Protection: Reduces pollutants and allergens that impact your family’s well-being year-round.
Research from the EPA and CDC confirms that MERV 13 filtration can remove up to 95% of airborne contaminants. That’s the kind of performance our air-obsessed engineers insist on.
The right filter size ensures a secure fit, steady airflow, and consistent filtration.
Measure Twice: Check the length, width, and depth of your current filter—usually printed on the frame.
Match Precisely: For example, our 17.25″ × 23.25″ × 1″ filters fit perfectly for optimal efficiency and HVAC protection.
Verify Compatibility: Review your system’s manual or consult a technician if you’re unsure which size or MERV level works best.
A well-fitted filter not only improves air quality but also extends your HVAC system’s lifespan.
Consistent maintenance keeps your air cleaner and your system running efficiently.
Inspect Monthly: Look for visible buildup of dust or debris.
Clean When Possible: If your filter is reusable, gently vacuum or rinse it—never use harsh chemicals.
Replace Regularly: Swap out disposable filters every 3–6 months, depending on household factors like pets or allergies.
Routine care helps maintain top-tier filtration and ensures you always breathe your best air.
At FilterBuy.com, we don’t just sell filters—we engineer them for Better Air For All.
U.S.-Made Quality: Every filter is precision-manufactured and tested in our American facilities.
Custom Sizes: Over 600 sizes available—plus custom options for any system.
Fast, Reliable Delivery: Get the right filter when you need it with quick, convenient shipping.
Trusted by Millions: Backed by years of manufacturing expertise and customer feedback.
When it comes to protecting your family and your home’s air, you deserve filters built by people who are truly obsessed with air quality.

"After testing millions of filters in homes across America, one thing has become crystal clear — the right MERV 13 filter doesn’t just clean your air, it transforms your home. The airflow feels smoother, the dust settles slower, and every breath feels easier. That’s not lab talk — that’s what we witness every day from real families breathing better with FilterBuy."
At FilterBuy, we don’t just repeat lab results—we verify them in real homes across America. Every claim is backed by trusted research and hands-on testing from our U.S. manufacturing team. Here’s what national data and our own field results reveal about MERV 13 performance:
1. MERV 13 Removes More Contaminants
The EPA confirms that upgrading to a MERV 13 (or higher) filter significantly improves your HVAC system’s ability to capture fine particles and airborne viruses. → Source: EPA.gov
In our in-house testing, FilterBuy MERV 13 filters captured up to 98% of particles as small as 0.3 microns—including dust, pollen, and pet dander.
Homeowners also reported easier breathing and fewer allergy symptoms within just weeks of switching to FilterBuy MERV 13 filters.
2. Up to 95% Cleaner Air
According to AirNow (EPA), filters rated MERV 13–16 can remove up to 95% of airborne particles, including smoke, dust, and pet allergens. → Source: AirNow.gov
Field results from FilterBuy homes show less visible dust, smoother airflow, and improved HVAC efficiency after upgrading from MERV 8 → MERV 13.
Our technicians call it “the quiet difference”—cleaner air, quieter systems, and fewer household irritants.
3. Backed by National Health Guidance
The CDC recommends using MERV 13 or higher wherever compatible to reduce airborne contaminants and improve indoor air safety. → Source: CDC.gov
At FilterBuy, we’ve engineered every MERV 13 filter to meet or exceed this national health standard. Each unit is pressure-tested in our U.S. facilities to ensure maximum filtration efficiency without restricting airflow or overstraining your HVAC system.
After testing and refining filters in homes across America, one truth stands out: the right filter doesn’t just clean your air — it changes the way your home feels.
What We’ve Seen Firsthand
Cleaner, Calmer Homes: Families notice less dust, quieter systems, and fresher air circulation with MERV 13 filters.
Fewer Allergy Symptoms: Many homeowners report easier breathing within days of upgrading.
Smoother System Performance: Properly fitted, regularly replaced filters help HVAC systems run efficiently and last longer.
The Sweet Spot: Across thousands of homes, MERV 13 consistently proves ideal — delivering hospital-grade filtration without restricting healthy airflow.
Our Professional Take
After years of manufacturing, testing, and learning from millions of customer experiences, one thing is clear: air quality isn’t a luxury — it’s a daily health choice. Treat your air filter as a vital part of your home’s wellness system.
Invest in Quality: A well-made filter pays you back with every breath your family takes.
Choose the Right Fit: Match your MERV rating to your system’s design for peak performance.
Stay Consistent: Replacing filters on time matters more than chasing higher numbers.
Pro Tip: Timely replacements every 3–6 months help maintain balanced airflow and prevent unnecessary strain on your HVAC system.
You’re one step away from creating cleaner, healthier air in your home. Follow these simple steps to ensure your system runs efficiently and your family breathes its best air yet.
1. Confirm Your Filter Size
Measure your current filter’s length × width × depth (L × W × D).
Match your size to 17.25″ × 23.25″ × 1″ — or find your exact fit at Filterbuy.
Remember: A perfect fit means stronger airflow and cleaner air.
Pro Tip: Even a small gap can let pollutants sneak past your filter—precise sizing makes all the difference.
2. Choose the Right MERV Rating
MERV 13 is the ideal balance for trapping allergens, dust, pet dander, and other fine particles.
Always check your system’s specifications before moving to a higher MERV rating to maintain healthy airflow and system longevity.
Expert Insight: For most homes, MERV 13 provides hospital-grade filtration without restricting performance.
3. Order Your Filters
Visit FilterBuy.
Select your size, quantity, and preferred delivery frequency.
Enjoy fast shipping, Made in the USA quality, and a 100% satisfaction guarantee.
Convenience Tip: Sign up for auto-delivery so your filters arrive exactly when it’s time to replace them—no reminders needed.
4. Replace Regularly
Inspect monthly for visible dust or discoloration.
Replace every 3–6 months, or more frequently if you have pets, allergies, or high household activity.
Stay consistent—clean filters mean cleaner lungs and a happier HVAC system.
5. Enjoy the Difference
Breathe easier knowing your family is protected from invisible irritants.
Reduce dust buildup and household allergens.
Keep your HVAC system running efficiently year-round with confidence and comfort.
For most homes, a MERV 8–13 filter offers the perfect balance of strong filtration, proper airflow, and system efficiency. MERV 13 is ideal for families who want superior protection from dust, allergens, and airborne contaminants.
Not usually. Most modern residential HVAC systems can handle MERV 13 filters with ease—especially when the blower motor is strong and ducts are clean. Always check your system’s manufacturer specifications to confirm compatibility before upgrading.
HEPA filters capture even smaller particles, but they’re designed for standalone air purifiers or specialized systems, not standard HVAC units. For typical home systems, MERV 13 is the highest practical and efficient rating available.
MERV 13 filters are used anywhere superior air quality is needed—homes, offices, schools, and healthcare settings. They’re especially effective for allergy control and for reducing pet dander, dust, smoke, and bacteria in the air.
For most households, a MERV 11 or MERV 13 pleated filter delivers the best mix of airflow, filtration efficiency, and long-term performance. Both trap a wide range of airborne particles while keeping your system running smoothly.
No. MERV 11 filters are safe for nearly all residential HVAC setups. They offer a noticeable air quality upgrade over basic filters—without restricting airflow or straining your system.
Yes. MERV 13 filters capture airborne mold spores effectively, along with bacteria, fine dust, and other microscopic pollutants that contribute to poor indoor air quality.
In most cases, yes—especially if your system is newer and well-maintained. If your HVAC system struggles with airflow or is older, consider a MERV 8–11 filter for balanced performance.
Typically 3 months, or up to 6 months in cleaner environments. Homes with pets, allergies, or higher dust levels may need more frequent replacements. For best results, inspect your filter monthly.
Slightly—but a properly sized, high-quality filter and a well-functioning blower motor can handle it easily. Reduced airflow usually means your filter is clogged or undersized, not that your MERV rating is too high.
For central HVAC systems, MERV 13 pleated filters are the most effective choice for capturing fine particles while maintaining airflow. For portable units or air purifiers, true HEPA filters provide the highest particle removal available.
Yes. Running a HEPA air purifier while you sleep can help reduce allergens, improve breathing comfort, and promote better rest—especially for those with allergies or asthma.