




24x30x1 MERV 11 Pleated Air Filter
Actual Size: 23.88x29.88x0.75
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





24x30x1 MERV 11 Pleated Air Filter
Actual Size: 23.88x29.88x0.75
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





24x30x1 MERV 11 Pleated Air Filter
Actual Size: 23.88x29.88x0.75
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
About
- This is a list 24x30x1 MERV 11 air filter replacement for your furnace, air conditioner, heat pump, or HVAC system
- Actual air filter size: 23.88x29.88x0.75
- MERV 11 synthetic media (comparable with MPR 1000/1200 and FPR 7) offers superior protection from dust, pollen, pet dander, mold, smog and more by trapping 95% 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 24x30x1 Air Filters
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.

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
Things to Know About Filter Sizes

Nominal Size
- The rounded size printed on your filter or HVAC unit (e.g., 24x30x1).
- Usually whole numbers to make identifying and ordering easier.
- A label for compatibility—not the exact measurement.

Actual Size
- The true, trimmed dimensions of the filter (e.g., 23.88x29.88x0.75 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.
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


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: 23.88x29.88x0.75 in → 24x30x1 nominal.

Search by nominal size on our site for the best fit.
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
If the filter you buy doesn't fit, we'll send you a better size.
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.

Merv 8
Comparable to:FPR: 4-7
MPR: 600-1000
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Merv 11
Comparable to:FPR: 6-9
MPR: 1200-1550
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Merv 13
Comparable to:FPR: 10
MPR: 1900-2800
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Bacteria
ODOR ELIMINATOR
Comparable to:FPR: 10
MPR: 1900-2800
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Odors
MERV 8
Comparable to:FPR: 4-7MPR: 600-1000






MERV 11
Comparable to:FPR: 6-9MPR: 1200-1550







MERV 13
Comparable to:FPR: 10MPR: 1900-2800








ODOR ELIMINATOR
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.

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

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.
Never forget to replace your air filter again.
- Save 5% on every order
- Choose Your Delivery Schedule
- Edit, Skip, or Cancel Anytime.
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 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 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:

Every 90 Days
Standard ScheduleFor most homes without pets or special air quality concerns. Great for general upkeep and energy efficiency.

Every 60 Days
If You Have Pets or AllergiesShedding fur, dander, and allergy triggers can build up fast. Changing your filter every two months helps keep the air fresher and symptoms at bay.

Every 30 Days
If You Have Respiratory Concerns or Live in Smog/Wildfire ZonesFor households affected by smoke, pollution, or respiratory conditions, monthly changes ensure maximum protection.
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 Size | 24 x 30 x 1 inches |
| Actual Size | 23.88 x 29.88 x 0.75 inches |
| Filter Type | Pleated |
| Media | Electrostatically Charged |
| Frame | Beverage Board |
| MERV Ratings Available | 8, 11, 13, Carbon |
| Lifespan | Up to 90 Days |
| Origin | Made in USA |
Buy the Best 24x30x1 MERV 11 HVAC & Furnace Air Filters for Home from Filterbuy.com
Tired of flimsy filters that barely last and fail to trap the dust and allergens in your home? At Filterbuy.com, we understand what homeowners really need—because we’ve been manufacturing premium air filters in the USA for over a decade, using advanced materials that outperform big-box store brands. Our 24x30x1 MERV 11 air filters are engineered to strike the ideal balance: strong enough to trap microscopic particles like pet dander and mold spores, yet optimized for airflow to protect your HVAC system’s efficiency. We’ve tested them in real homes—ours included—so you get proven performance you can count on with every filter change.
Top Takeaways
Captures 95% of particles like dust, pollen, and pet dander.
Made in the USA with high-quality, durable materials.
Improves HVAC efficiency and cuts energy use by up to 15%.
Proven performance based on real-world testing and customer feedback.
Fast shipping + auto-delivery make replacements easy.
Why Choose Filterbuy’s 24x30x1 MERV 11 Air Filters?
The 24x30x1 MERV 11 HVAC & furnace air filters manufactured by Filterbuy show great popularity among house owners who want to have cleaner air inside their houses without reducing the performance of the system. These filters are made to fit normal residential systems, and they have the capability of trapping up to 95 percent of air particles such as dust, pollen, pet dander, mold spores, and smoke, and hence they are very suitable to allergy sufferers and pet keeping households.
Each filter is designed to last 3 months during normal use due to its craftsmanship and the high quality of electrostatically charged synthetic media within it, manufactured in the USA. The MERV 11 rating offers a powerful upgrade from basic filters, striking the right balance between superior filtration and airflow efficiency.
Buying one-at-a-time, or larger purchases, Filterbuy will provide you fast shipping and then ensure your purchase is a rewarding one with a satisfaction guarantee, so you can heave a sigh of relief, knowing your air is cleaner and your system is safeguarded.

"After years of testing filters in real homes—including our own—we've designed the 24x30x1 MERV 11 filter to meet what families actually need: powerful filtration that captures the toughest particles without straining your HVAC system. It's the same high-performance standard we use in our facility, because we believe everyone deserves to breathe cleaner, healthier air."
Supporting Statistics Backed by Real-World Insights
At Filterbuy, we design filters based on real customer needs and proven data. Here’s why our 24x30x1 MERV 11 filters make a difference:
Indoor air is dirtier than you think
Indoor air can be 2 to 5 times more polluted than outdoor air.
In extreme cases, it’s over 100 times worse.
Source: epa.gov
Better filters mean healthier breathing
MERV 11 filters help reduce allergens and asthma triggers.
Especially effective in homes with pets or dust sensitivity.
Source: ncbi.nlm.nih.gov
Clean filters save energy and money
A clean filter can cut HVAC energy use by 5% to 15%.
Helps avoid system strain and costly repairs.
Source: Energy.gov
We’ve seen these results firsthand in our homes and from thousands of customers. Our filters don’t just meet standards—they’re built to outperform them.
Final Thought & Opinion
Clean air isn’t a luxury—it’s a necessity. Based on our first hand experience, here’s why Filterbuy’s 24x30x1 MERV 11 filter stands out:
Healthier Air
Captures allergens, dust, and pet dander.
Helps reduce respiratory symptoms in real homes.
Better System Performance
Keeps HVAC units running efficiently.
Reduces energy use and wear on equipment.
Proven Reliability
Made in the USA with quality materials.
Trusted by families, technicians, and our own team.
Our opinion: Don’t settle for generic filters. A well-built MERV 11 filter is a small change that makes a big impact on comfort, health, and long-term savings. Breathe easier—you’ll notice the difference.
Next Steps
Follow these simple steps to improve your air quality today:
Check Your Size
Confirm your filter size is 24x30x1.
Look at your current filter or HVAC manual.
Pick the Right Filter
Choose MERV 11 for strong filtration and airflow.
Order from Filterbuy
Go to Filterbuy.com.
Select single or multi-pack options.
Replace Every 90 Days
Set a reminder to change your filter every 3 months.
Replace sooner if you have pets or allergies.
Subscribe for Auto-Delivery
Never miss a filter change again.
Frequently Asked Questions
1. What does MERV 11 mean in air filters?
MERV 11 stands for Minimum Efficiency Reporting Value. It indicates that the filter can capture up to 95% of particles between 1.0–3.0 microns, such as dust, mold spores, pet dander, and pollen—making it a great choice for homes with allergies, pets, or high dust levels.
2. How often should I replace a 24x30x1 MERV 11 air filter?
It’s recommended to replace your filter every 90 days. If you have pets, allergies, or live in a dusty environment, consider replacing it every 60 days for optimal performance.
3. Will a MERV 11 filter restrict airflow in my HVAC system?
No, not when used properly. Filterbuy’s MERV 11 filters are designed to maintain strong filtration while allowing efficient airflow—so your system runs smoothly without overworking.
4. Is the 24x30x1 size a standard filter size?
Yes, 24x30x1 is a standard size for many residential HVAC and furnace systems. Always double-check your system’s requirements or your existing filter’s dimensions before purchasing.
5. Are Filterbuy's MERV 11 filters made in the USA?
Absolutely. All Filterbuy filters are proudly manufactured in the USA, using high-quality materials to ensure consistent, reliable performance for your home.
