filterbuy
 

Shop by

Home
>
air filters
>
1 inch
>
19 25x23 25x1
>

19.25x23.25x1 MERV 13 Pleated Air Filter

 

Actual Size: 19.25x23.25x0.75"

$138.96$23.16/ea
delivery truckFree Delivery
money downFactory-Direct Low Prices, Made in the USA
editor choiceHassle-Free Returns & Free Exchanges
 
 
 
 
 
 
 
 
 
 
Optimal
Optimal

RESIDENTIAL AND/OR COMMERCIAL USE

Change Every 3 Months

About

  • This is a list 19.25x23.25x1 MERV 13 air filter replacement for your furnace, air conditioner, heat pump, or HVAC system
  • Actual air filter size: 19.25x23.25x0.75"
  • MERV 13 synthetic media (comparable with MPR 1500/1900 and FPR 10) offers the best protection from dust, pollen, pet dander, mold, smog, bacteria, and virus carrying particles by trapping 98% 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 19.25x23.25x1 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.

USA flag flying

Proudly Made In The USA

Two delivery boxes from Filterbuy

Fast, Free Shipping on Every Order

All types of air filters from Filterbuy

Premium Materials That Go The Distance

A child and an adult holding the Filterbuy air filter

85,000+ 5-Star Reviews From Happy Customers

Stacked Filterbuy MERV-8 air filters

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., 19.25x23.25x1).
  • 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., 19.25x23.25x0.75" 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 19.25"Act 19.25"
Nom 1"Act 0.75"
Nom 23.25"Act 23.25"
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: 19.25x23.25x0.75" in → 19.25x23.25x1 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

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.

Auto Delivery Filterbuy

Never forget to replace your air filter again.

  • Save 5% on every order
  • Choose Your Delivery Schedule
  • 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 Size19.25 x 23.25 x 1 inches
Actual Size19.25 x 23.25 x 0.75" inches
Filter TypePleated
MediaElectrostatically Charged
FrameBeverage Board
MERV Ratings Available8, 11, 13
LifespanUp to 90 Days
OriginMade in USA

Buy the Best 19.25x23.25x1 MERV 13 HVAC & Furnace Air Filters for Home

After manufacturing millions of filters right here in the USA, we’ve learned what truly separates an average air filter from one that transforms your home’s air quality. Our 19.25x23.25x1 MERV 13 HVAC & furnace air filters are engineered to capture the tiniest pollutants—dust, pollen, smoke, and microscopic allergens—without restricting airflow. Each filter is precision-built in our family-owned facility and tested for performance that lasts longer and protects your system better.

At Filterbuy, clean air isn’t a tagline—it’s our obsession. Every filter we make reflects over a decade of real-world experience helping homeowners like you enjoy fresher, safer air with less hassle.

Top Takeaways

MERV 13 = Full Coverage

Maintains strong airflow for system efficiency.

Knowledge & Experience are the Basis

Small Investment, Great Result

Clean Air Without Any Trouble

Understanding MERV 13 Air Filters

Many times, homeowners get confused with the word MERV 13; however, the concept behind it is very easy to understand. MERV or Minimum Efficiency Reporting Value is a rating recognized by an industry standard that evaluates the efficiency of an air filter. The higher the MERV rating a filter has, the more efficient it is in capturing airborne particles.

Filters with MERV 13 ratings can capture particles ranging from 0.3 to 1.0 microns in size, which consist of allergens, for instance, dust mite, pollen, and mold spores. Having such filters means great indoor air quality, as allergy and asthma sufferers' health conditions can improve dramatically. In addition to that, capable of trapping bacteria also are the MERV 13 filters.

Key Features of 19.25x23.25x1 Filters

In the context of MERV 13 filters, we localize our study to a specific size: 19.25x23.25x1 filters. A multitude of HVAC systems and furnaces are capable of accommodating this size, thereby ensuring the most efficient work resulting from a perfect fit.

These filters carry a MERV rating as high as 13, and thus, they are a promise of excellent air quality. The filters of this kind, which can capture particles even up to 0.3 microns in size, thus, are thus a perfect solution to get rid of the dust, pollen, mold spores, and even some allergy-causing substances present in the air of your house.

The top-notch materials that are used for the production of these filters resist the blockage of the air stream; as a result, the air flow is kept at the most favorable level, and the HVAC system is not overworked. This is done not only at the expense of lesser power consumption but also at the expense of a longer equipment life.

Why Choose This Filter

Without a doubt, the air filters of superior quality can be the reason why Filterbuy is differentiated as the best brand from the rest. As a major player in the market and a trendsetter in the industry, Filterbu has taken the step to preserve its good name by delivering high-quality products made in its own factory. The products are very bright in their design accuracy, which not only assures that the performance is at a maximum level and that the product is kept for a long time, but also reflects the company's commitment to product reliability.

The company is so great to its customers and always wants to make them happy. By delivering a simple online shopping experience, its user-friendly interface enables customers to get the exact filters they need without any trouble. If we were to talk about prices, the products of Filterbuy would be very enticing to customers, as the perfect balance between being affordable and of great quality is maintained.

Health Benefits of Quality Air Filters

Essentially, health benefits are the major outcomes of high-standard air filters such as those by Filterbuy. These benefits include those of the respiratory system, relief of allergy, and even the reduction of risks of certain long-term diseases.

One of the major health benefits from the use of using the best quality air filters is the significant improvement in the quality of air indoors. MERV 13 filters from Filterbuy are highly efficient in capturing a broad range of airborne particles that can be dust, pollen, mold spores, or pet dander. In particular, allergy sufferers benefit because they almost eliminate allergens in their homes, thereby providing them with great relief.

Besides allergy relief, these respiratory infection preventative devices also hold a key to the cause of respiratory diseases. Research has linked poor air quality to several health problems, such as asthma and chronic obstructive pulmonary disease (COPD). The use of air filters from Filterbuy to get rid of these harmful agents can go a long way in reducing such health risks, thus promoting the general health of the body.

Tips for Installing and Maintaining Filters

Without doubt, if you want your MERV 13 HVAC air filters to give a good performance and have a longer lifespan, then they must be correctly installed and regularly maintained. The first step is to make sure that you have a filter of the right size. An incorrect size can cause the air to bypass the filter; hence, the air will not be purified effectively.

Besides getting the right filter, it is also good you turn off the HVAC system while installing the new one. Thus, dust will not be drawn into the system during the replacement of the filter. Always remember that the air flow direction should be followed at all times, which is most of the time indicated by arrows on the filter frame.

If you want to be able to replace your filters on time, then you should always check them, preferably every 2-3 months. Moreover, in areas that are heavily polluted or in houses with pets, you may want to do these checks every month. The reason is that gradually dust and other small particles accumulate on your filter, and this will decrease its functionality.

In case your filter is a reusable one, then regularly cleaning it is the best way to extend its life. Furthermore, these filters must be thoroughly dry before putting them back to avoid the growth of molds. Complying with these instructions concerning the installation and care of your filters will not only make your air cleaner but will also make your HVAC system more efficient.

View of 19.25x23.25x1 MERV 13 air filter

“After manufacturing millions of filters and studying air quality data for over a decade, we’ve seen one thing proven time and again — the right filter doesn’t just clean your air, it transforms your home. Our MERV 13 filters are engineered from real-world experience to strike the perfect balance between powerful filtration, reliable airflow, and everyday peace of mind.”

Supporting Statistics: Research-Backed Results, Real-World Proof

Our experience manufacturing millions of U.S.-made filter lines up with what government research confirms—MERV 13 filters deliver measurable air quality improvements without sacrificing airflow.

1. EPA on Virus Filtration

2. AirNow on Particle Reduction

3. EPA Technical Summary on Efficiency

Bottom Line:

Final Thought & Opinion

After over a decade of building and testing millions of filters, we’ve learned that air quality isn’t just science—it’s personal. Every Filterbuy filter is shaped by real customer experiences and proven performance.

What We’ve Seen Firsthand

Our Professional Insight

Why It Matters

Next Steps

Take control of your home’s air quality with these simple steps:

Frequently Asked Questions

Is MERV 13 too high for residential use?

No. Most modern residential HVAC systems can handle MERV 13 filters if they’re properly maintained and the system is in good condition. It’s ideal for homes with allergies, pets, or concerns about air quality.

What MERV rating is best for airflow?

MERV 8–11 provides the best balance between good filtration and unrestricted airflow. It’s a safe range for most systems without stressing the blower motor.

What is the best brand of HVAC filter?

Technicians commonly recommend Filterbuy, Honeywell, and 3M Filtrete for consistent quality, sizing accuracy, and reliable performance.

What MERV rating should I choose on Filterbuy?

Will a MERV 13 damage my AC?

Not if your system is well-maintained. As long as the filter fits correctly and is replaced regularly, a MERV 13 will not damage your AC or furnace.

Is there a downside to high MERV filters?

Yes, if your system isn’t designed for it. Higher MERV ratings can restrict airflow slightly, which may reduce efficiency or strain older systems.

How to choose the right air filter for your home?

Match your MERV rating to your household needs (pets, allergies, smoke), confirm your filter size, and check your system’s specifications before upgrading.

Is MERV 8 too restrictive for HVAC?

No. MERV 8 is standard for residential HVAC systems and allows excellent airflow with basic dust and debris filtration.

Which is better — MERV 13 or HEPA filter?

HEPA filters capture more particles but are typically too restrictive for most residential HVAC systems. A MERV 13 offers the best practical protection without system modification.

What is the best air filter on the market?

A high-quality, properly sized MERV 13 pleated filter—such as those from Filterbuy—delivers strong filtration, airflow efficiency, and longevity.

Are expensive HVAC filters actually worth it?

Yes, when matched to your system. Premium filters last longer, capture finer particles, and can improve health and HVAC performance over time.

What is the most commonly used filter in an HVAC system?

MERV 8 pleated filters are the most common in U.S. homes due to their affordability, solid airflow, and adequate dust control.