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Actual Size: 19 3/8" x 23 3/8" x 3/4"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 19 3/8" x 23 3/8" x 3/4"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 19 3/8" x 23 3/8" x 3/4"
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: 19 3/8" x 23 3/8" x 3/4" in → 20x24x1 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
Comparable to:FPR: 10
MPR: 1900-2800
Dust & Debris
Dust Mites & Particles
Pollen
Mold
Lint
Dander
Smoke & Smog
Odors
































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 | 20 x 24 x 1 inches |
| Actual Size | 19 3/8" x 23 3/8" x 3/4" 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 |
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.
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.
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.”
At Filterbuy, we know clean air matters. Here’s what trusted research — and years of real-world experience — prove:
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
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
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.
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.
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.
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.
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.
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.
Yes! Every Filterbuy filter is proudly made in the USA using high-quality, eco-friendly materials. We stand behind our manufacturing and quality control.
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.
Absolutely. Filterbuy offers multi-packs and bulk options so you can stock up, save money, and never miss a filter change.