




20x24x1 MERV 8 Pleated Air Filter
Actual Size: 19.38x23.38x0.75
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





20x24x1 MERV 8 Pleated Air Filter
Actual Size: 19.38x23.38x0.75
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





20x24x1 MERV 8 Pleated Air Filter
Actual Size: 19.38x23.38x0.75
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months
About
- This is a list 20x24x1 MERV 8 air filter replacement for your furnace, air conditioner, heat pump, or HVAC system
- Actual air filter size: 19.38x23.38x0.75
- 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 20x24x1 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., 20x24x1).
- 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., 19.38x23.38x0.75 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: 19.38x23.38x0.75 in → 20x24x1 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 | 20 x 24 x 1 inches |
| Actual Size | 19.38 x 23.38 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 20x24x1 MERV 8 HVAC & Furnace Air Filters for Home from Filterbuy
If you’ve ever struggled with flimsy air filters that barely trap dust or odors, you’ll know how frustrating it is to waste money on replacements that don’t last. At Filterbuy.com, we’ve spent years perfecting our 20x24x1 MERV 8 HVAC and furnace air filters so homeowners like you can enjoy healthier, cleaner air without the hassle. Based on real feedback from thousands of families, we design our filters to balance maximum dust capture, airflow efficiency, and long-lasting durability — so you breathe easier, save money, and trust that your indoor air is truly cleaner.
Top Takeaways
1️⃣ Cleaner Air:
Indoor air can be 2–5× dirtier than outdoor air.
MERV 8 filters trap dust, pollen, and allergens.
2️⃣ Protect Your HVAC:
Better airflow and less strain.
Save up to 15% on energy costs.
3️⃣ Trusted Quality:
USA-made and tested for performance.
4️⃣ Easy & Reliable:
Quick online ordering and free shipping.
Replace every 90 days for best results.
5️⃣ Real Experience:
Designed using real feedback.
Proven performance — no more cheap filters.
Why Choose Filterbuy’s 20x24x1 MERV 8 HVAC & Furnace Air Filters
Filterbuy’s 20x24x1 MERV 8 air filters are crafted to capture common household pollutants like dust, pollen, lint, and pet dander, keeping your home’s air noticeably cleaner. Unlike flimsy throwaway filters, our pleated design maximizes surface area for better airflow and longer service life, so you replace filters less often while your HVAC system runs efficiently.
Proudly made in the USA using high-quality, eco-friendly materials, every Filterbuy filter is rigorously tested for reliability and performance. We make ordering easy with fast shipping direct to your door and multiple pack options to fit your replacement schedule and budget.
Breathe easier, protect your HVAC investment, and trust that you’re giving your family the cleanest indoor air possible — that’s the Filterbuy promise.

“After testing thousands of filter designs over the years, we’ve learned that the right MERV 8 filter should do more than just trap dust — it should protect your HVAC system and help families breathe cleaner air every day. That’s why every 20x24x1 filter we make combines durability, airflow efficiency, and real-world performance, so our customers never have to settle for less.”
Supporting Statistics & First-Hand Insights
At Filterbuy, we know clean air matters. Here’s what trusted research — and years of real-world experience — prove:
1️⃣ Indoor Air Can Be 2–5 Times Dirtier
EPA research shows indoor air is often 2–5 times more polluted than outdoor air.
Dust, pollen, and pet dander get trapped inside.
Our MERV 8 filters help block these everyday pollutants. 👉 EPA Indoor Air Quality
2️⃣ Dirty Filters Waste Energy
Clogged filters cut HVAC efficiency by up to 15% (DOE).
More energy wasted means higher bills and more wear.
Our pleated filters hold more dust and keep airflow strong. 👉 DOE Energy Saver
3️⃣ Million Suffer From Allergens
Over 50 million Americans battle allergies each year (AAFA).
Many indoor triggers can be reduced with proper filtration.
Our customers trust our filters to help them breathe easier. 👉 AAFA Allergy Facts
✅ Takeaway: Trusted stats + our experience = a filter that keeps your air cleaner, your system protected, and your family healthier — every day.
Final Thought & Opinion
At Filterbuy, we know clean air changes everything. Here’s what we’ve learned first-hand:
Many homeowners settle for cheap filters that clog fast.
Poor filters let dust through and overwork your HVAC.
This means higher bills, more repairs, and unhealthy air.
Our honest opinion:
1️⃣ A quality 20x24x1 filter is a smart investment.
2️⃣ It protects your air, your system, and your wallet.
3️⃣ Backed by trusted data, real feedback, and our own testing.
Bottom line: Every family deserves cleaner air and real peace of mind. We’re proud to help you breathe easier — one filter at a time.
Next Steps
Take charge of your home’s air. Here’s what to do next:
1️⃣ Check Your Size
Confirm your filter size — 20x24x1 MERV 8 fits most systems.
2️⃣ Pick Your Pack
Choose a single, multi-pack, or bulk to save more.
3️⃣ Order Online
Add to cart. Secure checkout. Fast, free shipping.
4️⃣ Replace Regularly
Swap filters every 90 days (or sooner for pets/allergies).
5️⃣ Reach Out Anytime
Our team is ready to help before and after you buy.
👉 Shop now. Breathe easier tomorrow.
Frequently Asked Questions
1️⃣ What does a MERV 8 air filter capture?
A MERV 8 filter traps common particles like dust, pollen, pet dander, lint, and mold spores. It helps reduce allergens and keeps indoor air noticeably cleaner.
2️⃣ How often should I replace my 20x24x1 MERV 8 filter?
Replace your filter every 90 days for typical use. If you have pets, allergies, or high dust, check it monthly and change as needed to maintain airflow and air quality.
3️⃣ Are Filterbuy’s filters made in the USA?
Yes! Every Filterbuy filter is proudly made in the USA using high-quality, eco-friendly materials. We stand behind our manufacturing and quality control.
4️⃣ Will a MERV 8 filter affect my HVAC system’s airflow?
No — our pleated MERV 8 filters are designed for a perfect balance of filtration and airflow. They keep your system efficient while blocking unwanted particles.
5️⃣ Can I order these filters in bulk?
Absolutely. Filterbuy offers multi-packs and bulk options so you can stock up, save money, and never miss a filter change.
