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Actual Size: 19.50x21.50x0.75"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 19.50x21.50x0.75"
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 19.50x21.50x0.75"
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: 19.50x21.50x0.75" in → 20x22x1 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 22 x 1 inches |
| Actual Size | 19.50 x 21.50 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 |
Most homeowners don’t realize just how much indoor air affects their health — until they feel the difference a truly high-performance filter makes. Based on years of feedback from families across the country, we’ve seen firsthand how upgrading to a 20x22x1 MERV 13 filter transforms a home’s air quality from average to exceptional.
At Filterbuy.com, we build our MERV 13 filters to tackle the toughest indoor air challenges — capturing not just dust and pollen, but also bacteria, smoke, and fine particles that lower-grade filters simply can’t catch. Unlike cheap filters that choke airflow or wear out quickly, ours are engineered and tested right here in the USA for maximum performance and long-lasting durability.
We use the same filters in our own homes because clean air shouldn’t feel like a luxury. On this page, we’ll share what sets our 20x22x1 MERV 13 HVAC & furnace air filters apart, and how you can upgrade your air with confidence and real results you can feel every day.
1️⃣ MERV 13 = Better Protection
Blocks up to 98% of tiny particles.
Stops dust, pollen, smoke, and bacteria.
2️⃣ Indoor Air Needs It
Indoor air is 2–5x dirtier than outdoor air (EPA).
3️⃣ USA-Made & Trusted
Built and tested here.
Shipped fast, factory-direct.
4️⃣ Health & System Safe
Fewer allergens.
5️⃣ Easy & Quick
Order directly.
Install in minutes.
Our 20x22x1 MERV 13 HVAC and furnace air filters deliver hospital-grade filtration for everyday homes. They’re built to trap up to 98% of microscopic particles — including pollen, fine dust, smoke, bacteria, and even some viruses — making them ideal for households with allergy concerns, pets, or anyone who wants the cleanest air possible.
Unlike flimsy big-box filters, each Filterbuy MERV 13 is made in the USA with sturdy frames and moisture-resistant media that won’t sag or collapse. We test every filter to make sure it maintains strong airflow, so your system stays protected and runs efficiently.
By ordering direct from Filterbuy.com, you get factory-direct pricing, flexible bulk options, and filters made to the same high standards we trust in our own homes. Clean air, fewer irritants, and peace of mind — that’s what makes our MERV 13 the best choice for homeowners who won’t settle for average.

“We’ve seen it ourselves — when families upgrade to a MERV 13, they often tell us it’s the first time they truly notice how fresh and clean their air feels. We design every 20x22x1 MERV 13 filter to deliver hospital-grade protection without overworking your HVAC system, because your family deserves air that’s as healthy as possible. It’s the same level of protection I insist on in my own home.”
We see it every day — a MERV 13 filter makes a real difference. Here’s what trusted research shows:
1️⃣ Indoor air can be 2–5x worse than outdoor air.
The EPA says indoor air often holds more pollution.
Standard filters miss smaller particles. [Source: EPA]
2️⃣ Tiny particles = big health risks.
The CDC warns fine particles (PM2.5) can trigger asthma and heart issues.
MERV 13 traps what cheap filters don’t. [Source: CDC]
3️⃣ Cleaner air protects your family.
The American Lung Association says poor indoor air worsens asthma and allergies.
We’ve seen families breathe easier after switching to MERV 13. [Source: American Lung Association]
Bottom line:
✅ Better protection.
✅ Fewer irritants.
✅ Healthier air, proven by science — and our customers’ real results.
We’ve seen it first-hand: most homes need better air protection. Upgrading to a 20x22x1 MERV 13 filter is one of the smartest choices you can make.
Why?
1️⃣ Blocks tiny particles that cheap filters miss.
2️⃣ Helps reduce allergies, asthma triggers, and pollutants.
3️⃣ Keep your HVAC running smoothly — no airflow choking.
Our promise:
Made in the USA.
Built for real homes, tested for real results.
Trusted in our own families’ homes.
Bottom line:
✅ Fewer sick days.
✅ Lower bills.
✅ Healthier air for everyone under your roof.
Our take? A MERV 13 isn’t just a filter — it’s peace of mind you can feel every time you breathe.
1️⃣ Check Your Size
Make sure you need 20x22x1.
Measure your filter slot to confirm.
2️⃣ Pick Your Pack
Choose single or bulk.
More filters = fewer trips later.
Factory-direct prices.
Fast shipping to your door.
4️⃣ Install & Breathe Better
Swap old for new in minutes.
Enjoy cleaner, safer air right away.
✅ Need help?
Our team’s here to guide you anytime.
A MERV 13 filter traps up to 98% of tiny particles — including fine dust, pollen, smoke, bacteria, and some viruses. It’s ideal for homes that need extra protection from allergens and pollutants.
No, not when designed right. Filterbuy’s 20x22x1 MERV 13 is engineered to block harmful particles without choking airflow, so your system runs efficiently.
We recommend replacing every 60–90 days. If you have pets, allergies, or live in a high-dust area, check monthly for best results.
Yes! Every Filterbuy filter is proudly made in the USA for trusted quality, durability, and fast shipping straight to your door.
Check your current filter’s size or measure your filter slot. The numbers mean:
20 inches wide
22 inches tall
1 inch thick Need help? Our team is ready to guide you!
Still have questions? Reach out anytime — we’re here to help you breathe cleaner, safer air.