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12x24x1 HVAC, Furnace and AC Replacement Air Filters

Our high-performance 12x24x1 furnace and AC HVAC filters are designed for excellent air quality in any environment. From top brands, these filters ensure your HVAC system runs efficiently, providing clean air for both homes and businesses. Shop our 12x24x1 filters for superior results.

Filtros

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$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99

Filtros EZ Flow II 12x24x1 10055.011224 (12 filtros)

Construcción resistente El marco del filtro EZ Flow II está hecho de aglomerado pesado en un diseño de una sola pieza que elimina la separación d...

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$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99
Agotado
$ 86.99 - $ 86.99
$ 86.99
$ 86.99 - $ 86.99
$ 86.99

Filtros de flujo EZ 12x24x1 10155.011224 (12 filtros)

Este filtro está descatalogado por el fabricante AAF Flanders. El reemplazo recomendado son los filtros EZ Flow II. Haga clic aquí para ser diri...

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$ 86.99 - $ 86.99
$ 86.99
$ 86.99 - $ 86.99
$ 86.99
Agotado
$ 114.99 - $ 114.99
$ 114.99
$ 114.99 - $ 114.99
$ 114.99

12x24x1 Nested Glass EZ-Green Filters 10059.011224 (24 Filters)

At RememberTheFilter.com, your trusted authorized dealer for top-tier air filtration solutions, we’re proud to offer the AAF Flanders Nested Glass ...

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$ 114.99 - $ 114.99
$ 114.99
$ 114.99 - $ 114.99
$ 114.99
12x24x1 NaturalAire Standard MERV 8 Filters (12 pack)
$ 99.99 - $ 99.99
$ 99.99
$ 99.99 - $ 99.99
$ 99.99

12x24x1 NaturalAire Estándar MERV 8 Filtros (paquete de 12)

El filtro de aire NaturalAire Standard elimina muchísimo más partículas potencialmente dañinas en el aire, en comparación con los filtros de aire ...

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$ 99.99 - $ 99.99
$ 99.99
$ 99.99 - $ 99.99
$ 99.99
$ 104.99 - $ 104.99
$ 104.99
$ 104.99 - $ 104.99
$ 104.99

12x24x1 PREpleat LPD MERV 8 Capacidad Estándar 80055.011224 (12 Filtros)

El filtro AAF Flanders PREpleat LPD (baja caída de presión) SC (capacidad estándar) es el filtro plisado MERV 8 de capacidad estándar de resistenc...

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$ 104.99 - $ 104.99
$ 104.99
$ 104.99 - $ 104.99
$ 104.99
12x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 87.99 - $ 87.99
$ 87.99
$ 87.99 - $ 87.99
$ 87.99

Filtros MERV de micropartículas NaturalAire 12x24x1 10 (paquete de 12)

El filtro de aire de micropartículas NaturalAire elimina partículas potencialmente dañinas en el aire para mantener el aire de su hogar u oficina ...

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$ 87.99 - $ 87.99
$ 87.99
$ 87.99 - $ 87.99
$ 87.99
12x24x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-150
$ 214.13 - $ 214.13
$ 214.13
$ 214.13 - $ 214.13
$ 214.13

12x24x12 AAF Flanders VariCel Single Header MERV 14 | 331-946-150

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

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$ 214.13 - $ 214.13
$ 214.13
$ 214.13 - $ 214.13
$ 214.13
$ 112.99 - $ 112.99
$ 112.99
$ 112.99 - $ 112.99
$ 112.99

12x24x1 PREpleat LPD MERV 8 Alta Capacidad 80255.011224 (12 Filtros)

Los filtros de aire de alta capacidad AAF Flanders PREpleat LPD (baja caída de presión) están diseñados para retener polvo, baja caída de presión ...

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$ 112.99 - $ 112.99
$ 112.99
$ 112.99 - $ 112.99
$ 112.99
12x24x1 NaturalAire Microparticle MERV 10 Filters (12 pack)
$ 175.99 - $ 175.99
$ 175.99
$ 175.99 - $ 175.99
$ 175.99

12x24x1 NaturalAire Microparticle MERV 10 Filters 85156.011224 (12 pack)

The NaturalAire Microparticle air filter removes potentially harmful airborne particles to keep the air in your home or office clean and healthier....

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$ 175.99 - $ 175.99
$ 175.99
$ 175.99 - $ 175.99
$ 175.99
Flanders AAF Pleated Filter Flanders Precision Pak 12x24x12 - PAP350S2412 (8 Pack)
$ 193.99 - $ 193.99
$ 193.99
$ 193.99 - $ 193.99
$ 193.99

Flanders Precision Pak 12x24x12 - PAP350S2412 (paquete de 8)

Los filtros de bolsa de superficie extendida Precision Pak están diseñados para usarse en la mayoría de los sistemas HVAC comerciales o industriale...

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$ 193.99 - $ 193.99
$ 193.99
$ 193.99 - $ 193.99
$ 193.99
$ 201.99 - $ 201.99
$ 201.99
$ 201.99 - $ 201.99
$ 201.99

Filtros Exactos 12x24x1 Plisados ​​MERV 8 (paquete de 12)

Filtros plisados ​​de 12 x 24 x 1 en el tamaño exacto de 12 x 24 x 1. ¡Actualice su sistema HVAC con Exact Filters! Dígale adiós a la frustración d...

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$ 201.99 - $ 201.99
$ 201.99
$ 201.99 - $ 201.99
$ 201.99
12x24x1 NaturalAire Healthy Ultra MERV 13 Filters (12 pack)
$ 174.99 - $ 174.99
$ 174.99
$ 174.99 - $ 174.99
$ 174.99

12x24x1 NaturalAire Healthy Ultra MERV 13 Filters 95003.011224 (12 pack)

The NaturalAire MERV 13 air filter removes potentially harmful particles to keep the air in your home or office clean and healthier. This premium r...

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$ 174.99 - $ 174.99
$ 174.99
$ 174.99 - $ 174.99
$ 174.99
Flanders AAF Pleated Filter 12x24x12 Flanders Precisionaire Rigid Air Filters PRP65S2412 - 2 Filters
$ 329.99 - $ 329.99
$ 329.99
$ 329.99 - $ 329.99
$ 329.99

Filtros de aire rígidos Flanders Precisionaire 12x24x12 PRP65S2412

Los filtros rígidos de superficie de medio extendido Rigid-Air están diseñados para su uso en la mayoría de los sistemas HVAC comerciales o industr...

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$ 329.99 - $ 329.99
$ 329.99
$ 329.99 - $ 329.99
$ 329.99
$ 249.99 - $ 249.99
$ 249.99
$ 249.99 - $ 249.99
$ 249.99

12x24x1 Exact Filters Pleated MERV 13 (12 pack)

12x24x1 Exact Pleated MERV 13 Filters (12-pack). These high-quality filters are designed to provide exceptional air filtration for your home or of...

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$ 249.99 - $ 249.99
$ 249.99
$ 249.99 - $ 249.99
$ 249.99
PerfectPleat Ultra Filter
$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99

12X24X1 PerfectPleat Ultra 176-319-001 (12 filters)

PerfectPleat ULTRA The PerfectPleat ULTRA filter is designed to consistently increase efficiency throughout the service life of the filter. The Per...

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$ 97.99 - $ 97.99
$ 97.99
$ 97.99 - $ 97.99
$ 97.99
$ 196.99 - $ 196.99
$ 196.99
$ 196.99 - $ 196.99
$ 196.99

Carbón Activado PrePleat (12 Filtros) 81255.011224

Este filtro combina la baja resistencia y la alta capacidad de retención de polvo de un filtro plisado con la capacidad de eliminación de olores de...

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$ 196.99 - $ 196.99
$ 196.99
$ 196.99 - $ 196.99
$ 196.99
12x24x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-150
$ 202.49 - $ 202.49
$ 202.49
$ 202.49 - $ 202.49
$ 202.49

12x24x12 AAF Flanders VariCel Single Header MERV 13 | 331-765-150

VariCel® High Efficiency Pleat Filters VariCel® filters are engineered for high-performance air filtration in a variety of environments. Thei...

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$ 202.49 - $ 202.49
$ 202.49
$ 202.49 - $ 202.49
$ 202.49
$ 140.99 - $ 140.99
$ 140.99
$ 140.99 - $ 140.99
$ 140.99

12x24x1 PREpleat MERV 11 Capacidad Estándar 85655.011224M11 (12 Filtros)

El filtro de panel plisado PREpleat M11 SC permite una mejora significativa en la eficiencia de recolección con respecto a los productos MERV 8 exi...

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$ 140.99 - $ 140.99
$ 140.99
$ 140.99 - $ 140.99
$ 140.99
$ 114.72 - $ 114.72
$ 114.72
$ 114.72 - $ 114.72
$ 114.72

12x24x1 Koch Multi-Pleat XL8 MERV 8 High Capacity 102-701-002 (12 Filters)

Multi-Pleat XL8 MERV 8 Extended Surface Pleated Panel Filters with Mechanical Media Upgrade from standard pleated fi...

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$ 114.72 - $ 114.72
$ 114.72
$ 114.72 - $ 114.72
$ 114.72
$ 57.99 - $ 57.99
$ 57.99
$ 57.99 - $ 57.99
$ 57.99

12x24x1 NaturalAire Odor Eliminator Filters with Baking Soda (4 Pack)

The NaturalAire Odor Eliminator with Baking Soda air filter neutralizes common household odors. It uses the power of baking soda to rid your home o...

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$ 57.99 - $ 57.99
$ 57.99
$ 57.99 - $ 57.99
$ 57.99
12x24x1 Koch Disposable Polyester Panel 284-120-240 (12 Filters)
$ 69.99 - $ 69.99
$ 69.99
$ 69.99 - $ 69.99
$ 69.99

12x24x1 Koch Disposable Polyester Panel 284-120-240 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Polyester Panel Filters are versatile and suitable for a...

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$ 69.99 - $ 69.99
$ 69.99
$ 69.99 - $ 69.99
$ 69.99
12x24x1 Koch Disposable Fiberglass Panel 274-120-240 (12 Filters)
$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99

12x24x1 Koch Disposable Fiberglass Panel 274-120-240 (12 Filters)

Disposable Panel Filters for Commercial, Industrial & Residential Use KOCH Disposable Fiberglass Panel Filters are versatile and suitable for ...

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$ 59.99 - $ 59.99
$ 59.99
$ 59.99 - $ 59.99
$ 59.99
$ 196.99 - $ 196.99
$ 196.99
$ 196.99 - $ 196.99
$ 196.99

12x24x1 PREpleat MERV 13 Extended Surface 90013.011224 (12 Filters)

The PREpleat M13 pleated filter has a low initial resistance and supports achievement of LEED® credits by significantly improving Indoor Air Qualit...

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$ 196.99 - $ 196.99
$ 196.99
$ 196.99 - $ 196.99
$ 196.99
PerfectPleat HC M8 Filter
$ 89.99 - $ 89.99
$ 89.99
$ 89.99 - $ 89.99
$ 89.99

12X24X1 PerfectPleat High Capacity M8 173-319-011 (12 filters)

PerfectPleat HC M8 The PerfectPleat HC M8 filter is designed to consistently increase efficiency throughout the service life of the filter. The Per...

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$ 89.99 - $ 89.99
$ 89.99
$ 89.99 - $ 89.99
$ 89.99

Your Trusted Source For 12x24x1 Filters

We offer a complete selection of high-performance 12x24x1 HVAC filters. Whether you're replacing filters in your home, office, or commercial HVAC system, you'll find trusted options in MERV 1–13, including pleated, fiberglass, washable, and specialty filters.

All 12x24x1 filters are made in the USA and sourced from leading manufacturers like AAF Flanders and Koch Filter. Choose from standard and custom sizes to ensure a proper fit for your system—and enjoy clean air backed by over 50 years of HVAC experience.

Filter Fit Guarantee™

Have concerns about ordering 12x24x1 filters online? Your purchase is backed by our Filter Fit Guarantee™.

Free Delivery

We will ship your 12x24x1 filters direct to your door, for free! All orders in the domestic U.S over $50.

Highly Rated 12x24x1 Filters

12x24x1 HVAC, Furnace and AC Replacement Air Filters from leading manufactuerers.

Have questions about 12x24x1 Filters?

What are 12x24x1 filters designed for?

12x24x1 are designed to capture airborne particles and improve system performance in a wide range of HVAC and air filtration applications.

How do I know if 12x24x1 are right for my system?

The best way to determine if 12x24x1 are right for your system is to check your current filter specs, system requirements, or reach out to our team—we’re happy to help you choose the correct option.

Are 12x24x1 filters used in residential or commercial systems?

12x24x1 can be used in a variety of applications depending on system compatibility. Some are ideal for homes, while others are built for commercial, industrial, or specialized environments.

How often should 12x24x1 filters be replaced or maintained?

Replacement schedules for 12x24x1 filters vary based on environment, usage, and filter type. Always follow manufacturer guidelines or consult your facility manager or HVAC technician for best results.

What efficiency levels are available in 12x24x1?

12x24x1 filters are available in a range of filtration levels—from basic to high-efficiency—based on your air quality goals and system requirements.

Are your 12x24x1 filters made in the USA?

Most of our 12x24x1 replacements are proudly made in the USA by trusted manufacturers known for quality and performance.

What makes RememberTheFilter.com a trusted source for 12x24x1 filters?

With nearly 20 years online and over 50 years of HVAC experience, we offer only high-quality 12x24x1 replacement filter from leading brands—backed by real expertise and personalized support.

What MERV Rating Is Right for You?

MERV (Minimum Efficiency Reporting Value) measures how well an air filter captures particles. A higher number means better filtration—but it must still be compatible with your HVAC system. Here's a breakdown to help you choose the right filter for your home or business.

MERV 1–4

Basic protection. Captures larger particles like dust, lint, and pollen. Minimal airflow resistance. Best for older systems or basic residential use.

✔ Highest airflow
✘ Does not trap fine particles

MERV 8

Great balance of airflow and filtration. Captures mold spores, dust mites, pet dander, and pollen. Most common choice for residential HVAC systems.

✔ Good airflow
✔ Effective for everyday air quality needs

MERV 10

Enhanced dust-holding capacity and improved particle removal compared to MERV 8. Traps finer particles like mold spores, hair spray, and fabric fibers.

✔ More efficient than MERV 8
✔ Still maintains strong airflow

MERV 11

Captures smaller particles like auto emissions, smoke, and some airborne bacteria. Ideal for homes with pets or allergy concerns. Moderate impact on airflow.

✔ Great for allergies
✘ May reduce airflow in older systems

MERV 13

Highest residential-grade filtration. Captures airborne bacteria, tobacco smoke, and fine particles. Recommended for asthma, smoke exposure, or medical-grade needs.

✔ Best indoor air quality
✘ Not suitable for all systems without airflow evaluation

How to Measure HVAC Filters

To find the correct replacement, measure the length, width, and depth of your existing filter. Most filters are labeled with a nominal size (like 16x24x1), which is a rounded number—actual measurements are often slightly smaller. Accurate sizing ensures a proper fit and helps maintain airflow efficiency.

How to Measure HVAC Filter

Step 1: Remove Old Filter

Turn off your system and remove the existing filter. Look for printed dimensions on the frame—this is usually the nominal size.

Step 2: Measure Actual Size

Use a tape measure to get exact dimensions (length × width × depth). Round down to the nearest 1/8" if needed—example: 15-5/8" × 23-5/8" × 3/4".

Step 3: Match or Order Custom

If your measurements don’t match a standard size, we offer custom filters made to your exact dimensions.

Why Trust RememberTheFilter.com?

With nearly 20 years online and over 50 years of combined HVAC filter experience, we’re more than just a retailer—we’re filtration experts. As a proud member of the National Air Filtration Association (NAFA), we serve residential, commercial, and government customers across the U.S. Our filters are made in America and sourced from leading manufacturers like AAF Flanders, Koch Filter, and more.

We believe in clean air, fair prices, and helping people—not algorithms.

  • ✅ Nearly 20 years online helping homeowners and businesses nationwide
  • ✅ 50+ years of combined HVAC filtration experience
  • ✅ Member of NAFA – National Air Filtration Association
  • ✅ Made in the USA – filters from AAF Flanders, Koch, and more
  • ✅ Exact Filters® – custom built to your specs, down to 1/8"
  • ✅ Trusted by schools, clinics, and commercial buildings across the U.S.

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