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9x30x1 MERV 13 Pleated Air Filter

 

Actual Size: 8.75x29.75x0.75

$122.94$20.49/ea
delivery truckFree Delivery
money downFactory-Direct Low Prices, Made in the USA
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RESIDENTIAL AND/OR COMMERCIAL USE

Change Every 3 Months

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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Fast, Free Shipping on Every Order

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

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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., 9x30x1).
  • 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., 8.75x29.75x0.75 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 9"Act 8.75"
Nom 1"Act 0.75
Nom 30"Act 29.75"
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: 8.75x29.75x0.75 in → 9x30x1 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.

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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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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 x 30 x 1 inches
Actual Size8.75 x 29.75 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 9x30x1 MERV 13 HVAC & Furnace Air Filters for Home from Filterbuy.com

Tired of generic air filters that barely make a difference? At Filterbuy.com, we don’t just sell 9x30x1 MERV 13 hvac and furnace air filters—we engineer them for real results. Built in our family-owned U.S. facility, these filters are crafted to meet the same high-performance standards we use in our own homes. From testing airflow resistance to optimizing particle capture for allergens, we’ve fine-tuned every detail to deliver cleaner, healthier air. Experience the Filterbuy difference—trusted by homeowners who expect more from their filters.

Top Takeaways

  • MERV 13 filters capture 90%+ of allergens, dust, and particles.

  • Trusted by Filterbuy experts and used in their own homes.

  • Made in the USA with premium, long-lasting materials.

  • Ships fast and direct from our U.S. facility.

  • Easy to install and lasts up to 90 days.

Why Filterbuy’s 9x30x1 MERV 13 Air Filters Are the Smart Choice for Your Home

Filterbuy 9x30x1 MERV 13 air filter is professionally manufactured to safeguard your residence against air-borne contaminants such as pollen, dust, molds, pet dander, as well as virus-laden particles. They have the hospital-grade filtration strength and sturdy build, making them suitable in a household with allergies, asthma, or with an emphasis on healthier indoor air.

The filters are manufactured in the USA out of the high-quality, moisture-resistant materials with the electrostatically charged synthetic media that traps 98 percent of the airborne particles without inhibiting airflow. These filters are easy to install and have a life of up to 90 days and they fit standard HVAC and furnace systems and assist in making the system more efficient and reduce energy costs.

“We build every 9x30x1 MERV 13 filter the way we’d want it in our own homes—reliable, long-lasting, and engineered to trap even the finest airborne particles. After years of testing airflow, materials, and real-world performance, we’ve fine-tuned our filters to deliver hospital-grade protection without compromising your HVAC system’s efficiency.”

Supporting Statistics Backed by Experience

We don’t just manufacture MERV 13 filters—we use them ourselves. Here's why they work, backed by trusted research and real-life experience:

1. Indoor air can be 2–5x more polluted than outdoor air.

  • Confirmed by the EPA.

  • We see this in homes with sealed windows, pets, and HVAC recirculation.

Source: EPA.gov

2. MERV 13 captures 90%+ of particles 1.0–3.0 microns.

  • Includes mold spores, pet dander, pollen, and fine dust.

  • Based on ASHRAE standards and our lab testing.

Source: ASHRAE.org

3. Poor indoor air contributes to 50% of illnesses.

  • Linked to asthma, allergies, and respiratory infections.

  • We hear from customers who notice real health improvements.

Source: Lung.org

Final Thought & Opinion

Choosing the right air filter goes beyond specs—it’s about real-life performance. Here’s what we’ve learned from first-hand experience:

MERV 13 filters make a noticeable difference.

We’ve seen cleaner air reduce allergy symptoms, improve sleep, and protect HVAC systems.

We use what we sell.

Our team installs these same 9x30x1 MERV 13 filters in our own homes. That’s how much we trust them.

Made for peace of mind.

Every Filterbuy filter is crafted with care, tested for quality, and backed by trusted research.

Why it matters:

  1. Cleaner air = better health. Especially for families with allergies, asthma, or pets.

  2. Better filters = longer HVAC life. Reduced strain and improved efficiency.

  3. Trusted quality = confident choice. You’re not just buying a filter—you’re investing in your home’s air quality.

👉 Cleaner air isn’t a luxury—it’s a decision. And we’re here to help you make it with confidence.

Smiling woman holding a large Filterbuy 9x30x1 MERV 13 indoor air filter box on a balcony surrounded by trees

Next Steps

Follow these simple steps to get started:

1. Pick Your Quantity

  • Choose how many filters you need (replace every 3 months).

2. Add to Cart

  • Click “Add to Cart” to begin a fast, secure checkout.

3. Get Fast Shipping

  • Shipped directly from our U.S. facility to your door.

4. Install Easily

  • Swap out your old filter in seconds. No tools needed.

5. Breathe Easier

  • Enjoy cleaner air, fewer allergens, and a healthier home.

Frequently Asked Questions

1. What does MERV 13 mean for a 9x30x1 air filter?

MERV 13 refers to the filter’s ability to trap particles as small as 1.0–3.0 microns, including pollen, mold spores, dust mites, pet dander, and even virus-carrying particles. It offers superior filtration for residential use without significantly restricting airflow.

2. Will a 9x30x1 MERV 13 filter fit my HVAC system?

If your HVAC or furnace system uses a 9x30x1 filter size, then yes. Always check the size printed on your current filter or your system manual to confirm compatibility.

3. How often should I replace my 9x30x1 MERV 13 filter?

We recommend replacing it every 90 days for most homes. If you have pets, allergies, or poor air quality, consider changing it every 60 days for optimal performance.

4. Is a MERV 13 filter safe for home HVAC systems?

Yes. MERV 13 is considered the highest-rated filter that most residential systems can handle safely. It balances strong filtration with efficient airflow. Always check your system’s specifications to ensure compatibility.

5. What are the benefits of using a 9x30x1 MERV 13 air filter?

It helps reduce allergens, improve indoor air quality, protect your HVAC system, and support better respiratory health—especially in homes with kids, pets, or asthma sufferers.