Top 10 18x24x1 Air Filter – Furnace Filters

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1. Filtrete

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Filtrete 18x24x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack exact dimensions 17.81 x 23.81 x 0.81

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Filtrete #ad - Packaging and filter media may vary for MPR 300 Electrostatically charged fibers attracts and capture large airborne allergens like: Pollen, Household Dust, Lint. Ideal for high-velocity heating and cooling systems. Microparticle performance rating MPR 300 equates to Minimum Efficiency Reporting Value MERV 5. Lasts up to 3 months.
BrandFiltrete #ad
Manufacturer3M #ad
Height17.81 Inches
Length23.81 Inches
Width0.81 Inches
Part NumberMPR 300
ModelBD21-6PK-1E

2. Filtrete

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Filtrete 18x24x1, MPR 1000, AC Furnace Air Filter, Micro Allergen Defense, 2-Pack exact dimensions 17.81 x 23.81 x 0.81

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Filtrete #ad - Slim fit and 5in. Filters, and at least every 12 months for 4 in. Attracts and captures particles such as lint, pollen, dust, pet dander, smoke and smog.1000 mpr has a rating of MERV 11. Find your size: 1000 mpr available in 4in. 4in.

For optimal performance of your heating & cooling system or hvac system, change your home air filter at least every 90 days for 1 in. Create a change countdown in the filtrete smart app. Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. Filters. When the lifespan is up, you’ll get a notification to change your filter. Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through.

A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. And 5 in. Home air filters for your furnace, air conditioner or HVAC system. Sign-up for a filter change reminder program that works for you! For residential use only. Thick air filters. Simply use the app to scan the barcode on your filter’s packaging, then choose 30, 60 or 90 days for your replacement countdown.
BrandFiltrete #ad
Manufacturer3M #ad
Height1 Inches
Length24 Inches
Width18 Inches
Part NumberAD21-2PK-6E
ModelAD21-2PK-6E
WarrantyLimited Warranty

3. FilterBuy

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Silver, Pleated HVAC AC Furnace Filters 4-Pack, FilterBuy 18x24x1 Air Filter MERV 8

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FilterBuy #ad - Industrial-grade beverage board frames paired with dual wire backings outperform traditional cardboard compositions by improving structural integrity with their ability to endure temperatures up to 200 degrees Fahrenheit. High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models.

Merv 8 synthetic media comparable with clean living dust defense mpr 300 - 600 is recommended in most scenarios due to its capability to trap 90% of airborne particles, protecting your home or business from debris, lint, mold, dander, pollen, and other forms of dust without impacting air flow.

The filterbuy replacement air filter 18x24x1 actual measurements: 17. 38" x 23. 38" x 075" ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. All components are 100% manufactured within the United States and designed with recyclable materials providing an eco-friendly alternative to enhancing air quality.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height0.75 Inches
Length17.38 Inches
Width23.38 Inches
Part NumberAFB18x24x1M8pk4
ModelAFB18x24x1M8pk4

4. Filtrete

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Filtrete 18x24x1, 2-Pack exact dimensions 17.81 x 23.81 x 0.78, MPR 1900, Healthy Living Ultimate Allergen, AC Furnace Air Filter

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Filtrete #ad - The higher the mpr, smoke, the more microparticles--such as pollen, pet dander, bacteria and viruses--your filter will capture from the air passing through it. Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in.

Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. And 5in. Thick air filters. 62% small particle capture, like bacteria and particles that carry viruses % captured is based on ASHRAE 52. 2 testing for 03 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing. Sign-up for a filter change reminder program that works for you! Filters.

For optimal performance of your heating & cooling system or hvac system, change your home air filter at least every 90 days for 1 in. A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. 1900 mpr has a rating of MERV 13. Home air filters for your furnace, air conditioner or HVAC system. Filters, and at least every 12 months for 4in. Slim fit and 5 in.
BrandFiltrete #ad
Manufacturer3M #ad
Height17.81 Inches
Length23.81 Inches
Weight1.1 Pounds
Width0.78 Inches
Part NumberUT21-2PK-6E
ModelUT21-2PK-6E
WarrantyLimited Warranty

5. Filtrete

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Filtrete 18x24x1, 4-Pack exact dimensions 17.81 x 23.81 x 0.78, AC Furnace Air Filter, MPR 1500, Healthy Living Ultra Allergen

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Filtrete #ad - Certified as asthma & allergy friendly As outlined in report ASCR: 1246-01. 54% small particle capture, like bacteria and particles that carry viruses % captured is based on ASHRAE 52. 2 testing for 03 to 1 micron particles from the air passing through the filter, which relates to HVAC industry standard efficiency testing.

Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. A dirty filter will slow down air flow and make the system work harder to keep you warm or cool - wasting energy. Filters, and at least every 12 months for 4 in. And 5 in. Slim fit and 5 in. Thick air filters. The higher the mpr, the more microparticles - such as pollen, pet dander, smoke, bacteria and viruses - your filter will capture from the air passing through it.

For optimal performance of your heating & cooling system or hvac system, change your home air filter at least every 90 days for 1in. Filters. Sign-up for a filter change reminder program that works for you! Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. Attracts and captures microscopic particles such as smoke, cough and sneeze debris, bacteria and viruses - and large particles, including lint, household dust and pollen.
BrandFiltrete #ad
ManufacturerFiltrete #ad
Height17.81 Inches
Length23.81 Inches
Width0.78 Inches
Part Number2021-4PK
Model2021-4PK
WarrantyCall 1-800-494-3552 for warranty questions

6. Flanders

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Flanders PrecisionAire 84857.011824 18 by 24 by 1 NaturalAire with Baking Soda, 4-Pack

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Flanders #ad - Compatible with hvac systems requiring filters sized 18" x 24". V-pleats provide large media surface area for more effective filtration while keeping airflow resistance low. Each filter maintains efficiency for up to 90 days. Experience the clean air difference. Pack of 4 air filters designed with baking soda media to control, absorb, and eliminate offensive odors. Merv 8 rating: removes household dust, dirt, pollen, mold spores and more.
BrandFlanders #ad
ManufacturerFlanders Corporation #ad
Height24 Inches
Length18 Inches
Width1 Inches
Part Number84857.011824
Model84857.011824

7. Filtrete

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AC Furnace Air Filter, Allergen Defense Odor Reduction, MPR 1200, Filtrete 18x24x1, 6-Pack exact dimensions 17.81 x 23.81 x 0.81

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Filtrete #ad - Filters. Outperforms fiberglass, washable and non-electrostatic 3-month pleated 1 in. Attracts and captures particles such as lint, dust, pollen, pet dander, smoke and smog. Active carbon layer acts as odor eliminator for pet smells, cooking, smoke, mildew and cleaning chemicals.

Designed with exclusive filtrete brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through. 1200 odor mpr has a rating of MERV 11. And 5 in. Sign-up for a filter change reminder program that works for you! For residential use only. Filters, and at least every 12 months for 4 in. The higher the mpr, pet dander, the more microparticles--such as pollen, smoke, bacteria and viruses--your filter will capture from the air passing through it.

Home air filters for your furnace, air conditioner or HVAC system. A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. 25 times more effective in odor removal than other national retail home air filters, based on a comparison of organic vapor capacity. For optimal performance of your heating & cooling system or hvac system, change your home air filter at least every 90 days for 1in.
BrandFiltrete #ad
Manufacturer3M #ad
Height17.81 Inches
Length23.81 Inches
Weight1.26 Pounds
Width0.81 Inches
Part NumberHOME21-6E
ModelAOR21-6PK-2E

8. Nordic Pure

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Nordic Pure 18x24x1 MERV 12 Pleated AC Furnace Air Filters 6 Pack

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Nordic Pure #ad - Nordic pure recommends changing 1” air filters every 30-90 days. Hypoallergenic and antimicrobial pleated electrostatic filter material. Attracts indoor allergens, dust, pollen and other airborne contaminants. Nominal size: 18 x 24 x 1, actual size: 17 1/2 x 23 1/2 x 3/4 17. 5 x 23. 5 x 075. Made in the USA.
BrandNordic Pure #ad
ManufacturerNordic Pure #ad
Height24 Inches
Length18 Inches
Weight4.41 Pounds
Width1 Inches
Part Number18x24x1M12-6
Model18x24x1
WarrantyPlease Contact the seller directly for warranty information about this product

9. FilterBuy

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18x24x1 – Silver, Pack of 2 Filters, FilterBuy 18x24x1 MERV 8 Pleated AC Furnace Air Filter

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FilterBuy #ad - Afb silver merv 8, comparable with mPR 300 / 600 clean living and dust & pollen. High quality: filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F.

Made in the usa: manufactured by FilterBuy in the USA using 100% American made components. Ideal for residential and commercial use. 18x24x1 merv 8 pleated air filter for ac hvac or furnace pack of 2 filters. Say hello to better indoor air quality! Synthetic media provides significantly higher particulate efficiency than standard cotton media. Traps 90% of airborne particles: say goodbye to dust, debris, lint, pollen, and pet dander. Long-lasting: designed to last up to 3 months.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Part NumberAFB18x24x1M8pk2
ModelAFB18x24x1M8pk2

10. FilterBuy

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FilterBuy 18x24x1 Air Filter MERV 11, Gold, Pleated HVAC AC Furnace Filters 4-Pack

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FilterBuy #ad - High-quality construction features an electrostatically charged, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models. Merv 11 synthetic media comparable with micro allergen defense mpr 800 - 1200 is recommended if you have pets or allergies due to its capability to trap 95% of airborne particles, lint, debris, smog, protecting your home or business from smoke, pollen, mold, dander, and other forms of dust without impacting air flow.

Industrial-grade beverage board frames paired with dual wire backings outperform traditional cardboard compositions by improving structural integrity with their ability to endure temperatures up to 200 degrees Fahrenheit.

The filterbuy replacement air filter 18x24x1 actual measurements: 17. 38" x 23. 38" x 075" ensures that your furnace, air conditioner, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. All components are 100% manufactured within the United States and designed with recyclable materials providing an eco-friendly alternative to enhancing air quality.
BrandFilterBuy #ad
ManufacturerFilterBuy #ad
Height0.75 Inches
Length17.38 Inches
Weight100 Kilograms
Width23.38 Inches
Part NumberAFB18x24x1M11pk4
ModelAFB18x24x1M11pk4