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Actual Size: 9.75x23.75x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 9.75x23.75x1"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 9.75x23.75x1"
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: 9.75x23.75x1" in → 9.75x23.75x1 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 | 9.75 x 23.75 x 1 inches |
| Actual Size | 9.75 x 23.75 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.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.
Perfect Fit: Custom-made 9.75x23.75x1 size—no gaps, no airflow loss.
High Efficiency: MERV 8 captures up to 85% of common particles.
USA-Made Quality: Durable materials, built and tested in the U.S.
Trusted Results: Backed by EPA data and real customer feedback.
Fast Shipping: Quick delivery and optional filter change reminders.
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.”
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:
EPA confirms MERV 8 filters capture ~85% of 3–10 micron particles (dust, pollen, lint).
Source – EPA.gov
Upgrading from MERV 1–4 to MERV 8+ can significantly reduce indoor particle levels.
Ideal for households with allergies or pets.
Source – EPA.gov
MERV 8 filters show 24.8% fine particle removal in real home conditions.
Confirms what we see in customer feedback and in-house tests.
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.
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.
✅ Custom fit, no guesswork
We make this exact size in-house, so it fits your system perfectly—no gaps, no airflow issues.
✅ Tested for real-world conditions
We've tested these filters for durability, efficiency, and airflow—not just in labs, but in actual homes.
✅ Balanced performance
MERV 8 traps most common particles while keeping your system running smoothly.
✅ Customer-proven results
Homeowners often report better air quality, reduced allergies, and even lower energy use after switching.
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.

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.
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.
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.
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.
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.
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.