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Actual Size: 13.25x22.75x1
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 13.25x22.75x1
RESIDENTIAL AND/OR COMMERCIAL USE
Change Every 3 Months





Actual Size: 13.25x22.75x1
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: 13.25x22.75x1 in → 13.25x22.75x1 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























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 | 13.25 x 22.75 x 1 inches |
| Actual Size | 13.25 x 22.75 x 1 inches |
| Filter Type | Pleated |
| Media | Electrostatically Charged |
| Frame | Beverage Board |
| MERV Ratings Available | 8, 11, 13 |
| Lifespan | Up to 90 Days |
| Origin | Made in USA |
After shipping millions of filters to homes across America, we’ve learned one thing: not all 13.25x22.75x1 MERV 13 filters are created equal. That’s why at Filterbuy.com, we manufacture every air filter in our U.S. facilities using premium materials engineered for maximum airflow and particle capture, without compromising your HVAC system’s performance. We’ve tested these filters ourselves to meet the needs of families with allergies, pets, and sensitive respiratory conditions. When you buy from us, you’re not just getting the right fit—you’re getting filtration you can trust, backed by real-world experience and factory-direct reliability.
MERV 13 = High Protection Captures 98% of allergens, dust, bacteria, and more.
Perfect Fit, U.S.-Made 13.25x22.75x1 filters are made in the USA and tested for performance.
Indoor Air Is Dirtier Than You Think EPA says it can be 2–5× more polluted than outdoor air.
Real Results, Fast Customers notice cleaner air and fewer allergy symptoms within days.
Shop Direct = Shop Smart Fast shipping, factory-direct pricing, and guaranteed sizing at Filterbuy.com.
If you're looking for a high-quality 13.25x22.75x1 MERV 13 air filter, Filterbuy.com delivers the performance and reliability your home deserves. Our filters are made in the USA using industrial-grade, pleated synthetic media designed to trap 98% of airborne particles—including pollen, dust, mold spores, bacteria, and smoke—while maintaining optimal airflow for your HVAC or furnace system.
Built to last up to 3 months, these filters are ideal for households with pets, allergy sufferers, or anyone seeking cleaner indoor air. With a precision fit and durable frame, our filters help extend the life of your HVAC system and improve overall energy efficiency.
Order directly from our factory for fast shipping, volume savings, and a satisfaction guarantee. When you buy from Filterbuy, you're not just replacing a filter—you’re upgrading your home’s air quality with trusted, proven protection.

“We’ve spent years refining our MERV 13 filters to strike the perfect balance between high-efficiency filtration and HVAC system performance. Based on direct feedback from thousands of homeowners and extensive in-house testing, we engineered our 13.25x22.75x1 filters to meet real-world demands—whether it's combating allergy season, reducing pet dander, or improving overall indoor air quality. When we say they’re built to protect your home, it’s because we’ve seen the difference firsthand.”
1. Indoor air is often more polluted than outdoor air.
EPA reports indoor air can be 2–5× more polluted, sometimes over 100× worse.
We see this often when customers switch from low-efficiency filters to MERV 13 and notice immediate air quality improvements. 🔗 EPA Source
2. MERV 13 captures what cheaper filters miss.
ASHRAE recommends MERV 13 for trapping:
Fine dust
Pet dander
Mold spores
Bacteria
Virus-laden particles (0.3–1.0 microns)
We've tested these filters to ensure maximum filtration without airflow loss. 🔗 ASHRAE Source
3. Poor air quality costs you—literally.
The CDC links indoor air pollution to 150 B++ in annual health costs.
Many Filterbuy customers report:
Fewer allergy symptoms
Improved sleep
Choosing the right air filter isn’t just a maintenance task—it’s a health investment. Based on our experience at Filterbuy, here’s what we know:
Why MERV 13 Makes a Difference
Traps up to 98% of harmful particles like dust, pollen, mold, and bacteria
Designed to protect HVAC performance without restricting airflow
Ideal for homes with allergies, pets, or sensitive respiratory needs
What We’ve Seen Firsthand
Customers report:
Cleaner vents
Less dust buildup
Improved sleep and breathing within days
Consistent feedback: “I wish I had upgraded sooner.”
Our Opinion
A quality filter like the 13.25x22.75x1 MERV 13 is more than a fit—it’s peace of mind.
Buying factory-direct from Filterbuy means:
U.S. manufacturing
Rigorous quality control
Trusted performance, backed by data and customer stories
Bottom Line: You’re not just buying an air filter—you’re investing in the air your family breathes. And that’s a decision that should never be compromised.
1. Confirm Your Filter Size
Make sure your system uses a 13.25x22.75x1 filter.
Not sure? Contact us.
2. Choose MERV 13
Delivers clean air without restricting airflow.
3. Order from Filterbuy.com
Fast, factory-direct shipping.
Save with multi-packs or subscriptions.
4. Install Your New Filter
Takes just minutes to replace.
5. Stay Air-Aware
Sign up for email reminders and tips.
Visit our Air Quality Resource Center for expert insights.
MERV 13 filters trap up to 98% of airborne particles, including pollen, pet dander, mold spores, bacteria, smoke, and some viruses. It’s one of the highest ratings recommended for residential use, balancing air quality and HVAC efficiency.
Not if it’s well-designed. Filterbuy’s MERV 13 filters are engineered to provide maximum filtration without compromising airflow, making them safe for most home HVAC and furnace systems.
Replace your filter every 3 months under typical conditions. If you have pets, allergies, or run your system frequently, consider changing it every 1–2 months for best results.
Our filters are made in the USA, ship direct from our factory, and are crafted using high-quality pleated media. You get a precision fit, faster delivery, and better long-term value—plus the confidence of buying from a trusted manufacturer.
Check the dimensions printed on your existing filter or consult your HVAC unit’s manual. Still unsure? Our customer support team is happy to help you confirm the right size.