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9.75x23.75x1 MERV 8 Pleated Air Filter

 

Actual Size: 9.75x23.75x1"

$82.98$13.83/ea
delivery truckFree Delivery
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Standard
Standard

RESIDENTIAL AND/OR COMMERCIAL USE

Change Every 3 Months

About

  • This is a list 9.75x23.75x1 MERV 8 air filter replacement for your furnace, air conditioner, heat pump, or HVAC system
  • Actual air filter size: 9.75x23.75x1"
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) offers standard protection from dust, pollen, and more by trapping 90% 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 9.75x23.75x1 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.

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Proudly Made In The USA

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All types of air filters from Filterbuy

Premium Materials That Go The Distance

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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., 9.75x23.75x1).
  • 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., 9.75x23.75x1" 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 9.75"Act 9.75"
Nom 1"Act 1"
Nom 23.75"Act 23.75"
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: 9.75x23.75x1" in → 9.75x23.75x1 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.

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Never forget to replace your air filter again.

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  • Edit, Skip, or Cancel Anytime.
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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 Size9.75 x 23.75 x 1 inches
Actual Size9.75 x 23.75 x 1" inches
Filter TypePleated
MediaElectrostatically Charged
FrameBeverage Board
MERV Ratings Available8, 11, 13
LifespanUp to 90 Days
OriginMade in USA

Buy the Best 9.75x23.75x1 MERV 8 HVAC & Furnace Air Filters for Home from Filterbuy.com

At Filterbuy.com, we understand how frustrating it can be to find the exact air filter size your system needs—especially something as specific as 9.75x23.75x1. That’s why we custom-make our MERV 8 HVAC and furnace air filters right here in the USA, using durable, high-capacity materials we’ve tested for peak airflow and long-lasting performance. Based on years of direct customer feedback and our own in-house performance data, we’ve optimized these filters to strike the perfect balance between air quality and energy efficiency—without overworking your system. When you buy from Filterbuy, you're not just getting a filter; you're getting our commitment to cleaner air and consistent quality, backed by real-world results.

Top Takeaways

Trusted Performance You Can Count On

The 9.75x23.75x1 MERV 8 air filters of Filterbuy.com are designed to provide high efficiency and dependable filtration of your home HVAC or furnace system. These types of filters, which can trap up to 90 per cent of air particles such as dust, pollen and pet dander, keep the air in your home cleaner and the system working longer. Each filter is manufactured in the USA with the finest materials providing a custom fit, durable frame, and a pleated design resulting in increased performance with a life span of up to 3 months. Filterbuy offers quick delivery and a specific size that you cannot easily find in stores, which means that you will always get the right filter at the right time.

“Over the years, we’ve seen how overlooked filter sizes like 9.75x23.75x1 can cause frustration for homeowners. That’s why we custom-build each one to meet exact HVAC specs, using materials we’ve personally tested for durability, airflow, and filtration efficiency. Our goal isn’t just to deliver a product—it’s to provide peace of mind through cleaner air and filters that truly fit.”

Supporting Statistics

We’ve tested our filters extensively and heard the same from thousands of homeowners: MERV 8 works. Here’s the data that backs it up:

1. Captures 85% of Common Air Particles

Source – EPA.gov

2. Major Air Quality Boost Over Basic Filters

Source – EPA.gov

3. Real-World Efficiency Matches the Lab

Source – ScienceDirect

Bottom line: Filterbuy’s 9.75x23.75x1 MERV 8 filters deliver verified performance—trusted by experts, proven by data, and backed by first-hand results from real homes.

Final Thought & Opinion

Finding the right filter size—like 9.75x23.75x1—can be a challenge. Many homeowners end up settling for close-but-not-quite options. At Filterbuy, we believe you deserve better.

Here’s why our MERV 8 filters stand out:

We make this exact size in-house, so it fits your system perfectly—no gaps, no airflow issues.

We've tested these filters for durability, efficiency, and airflow—not just in labs, but in actual homes.

MERV 8 traps most common particles while keeping your system running smoothly.

Homeowners often report better air quality, reduced allergies, and even lower energy use after switching.

Why it matters:

We’ve seen how the right filter makes a big difference—and we’ve built ours to meet that standard. If you want a filter that truly fits your home and your expectations, this is it.

View of Filterbuy's MERV 8 HVAC air filters

Next Steps

Follow these simple steps to get clean, reliable air filtration:

1. Choose Quantity

Pick how many 9.75x23.75x1 MERV 8 filters you need. Buy more, save more.

2. Plan Replacements

Replace every 90 days—or more often if you have pets or allergies.

3. Add to Cart

Click "Add to Cart" and complete your order on Filterbuy.com.

4. Track Your Order

Get fast shipping updates and delivery tracking straight to your inbox.

5. Install & Enjoy

Swap your filter and breathe cleaner, fresher air in no time.

Frequently Asked Questions

1. What does the size 9.75x23.75x1 mean?

This is the exact dimensions of the air filter: 9.75 inches x 23.75 inches x 1 inch. It’s a custom size not commonly found in retail stores, so it’s important to order this precise measurement for a proper fit.

2. What does MERV 8 mean, and is it good for home use?

MERV 8 is a mid-range efficiency rating ideal for residential use. It captures up to 85% of airborne particles like dust, pollen, mold spores, and pet dander without restricting airflow—making it a reliable balance of filtration and HVAC performance.

3. How often should I replace a 9.75x23.75x1 MERV 8 filter?

Typically, every 90 days. However, if you have pets, allergies, or run your HVAC system frequently, replacing it every 1–2 months may offer better air quality and system efficiency.

4. Will this filter fit all HVAC systems?

Only if your unit specifically requires a 9.75x23.75x1 size. Always check your system’s filter slot dimensions before purchasing. This is a non-standard size, often used in custom installations.

5. Can a MERV 8 filter help with allergies?

Yes. While not as powerful as higher-rated filters, MERV 8 filters still effectively trap common allergens like dust mites, pollen, and pet hair—making a noticeable difference for many allergy sufferers.

    Best 9.75x23.75x1 MERV 8 Furnace & HVAC Air Conditioner Filters