Best 18X18X1 Air Filter in USA

# Preview Product Price
1 Filtrete 18x18x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack (exact dimensions 17.81 x 17.81 x 0.81) Filtrete 18x18x1, AC Furnace Air Filter, MPR 300, Clean Living Basic Dust, 6-Pack (exact dimensions... $29.82
2 Arm & Hammer Max Allergen & Odor Reduction 18x18x1 Air and Furnace Filter, MERV 11, 4-Pack Arm & Hammer Max Allergen & Odor Reduction 18x18x1 Air and Furnace Filter, MERV 11, 4-Pack $36.99
3 E-Z flow II 18x18x1 Air Filter Pack of 12 E-Z flow II 18x18x1 Air Filter Pack of 12 $43.95
4 Aerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4'x17 3/4'x3/4') Aerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4"x17... $41.73
5 Nordic Pure 18x18x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack Nordic Pure 18x18x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack $45.95
6 Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 17.50 x 0.75 Inches) Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters... $34.92
7 Aerostar 18x18x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4' x 17 3/4' x 3/4') Aerostar 18x18x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4" x... $54.28
8 Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4'x 19 3/4' x 3/4') Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4"x 19... $37.99
9 Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 17.50 x 0.75 Inches) Filterbuy 18x18x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters... $25.10
10 Filterbuy 14x18x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 13.50 x 17.50 x 0.75 Inches) Filterbuy 14x18x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters... $23.08
11 Filtrete 20x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 2-Pack (exact dimensions 19.688 x 24.688 x 0.84) Filtrete 20x25x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 2-Pack (exact dimensions... $23.49
12 Filterbuy 18x18x1 Air Filter MERV 11 Allergen Defense (3-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 17.50 x 0.75 Inches) Filterbuy 18x18x1 Air Filter MERV 11 Allergen Defense (3-Pack), Pleated HVAC AC Furnace Air Filters... $31.47
13 Filterbuy 18x30x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.75 x 29.75 x 0.75 Inches) Filterbuy 18x30x1 Air Filter MERV 8 Dust Defense (6-Pack), Pleated HVAC AC Furnace Air Filters... $55.86
14 Filterbuy 18x18x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 17.50 x 0.75 Inches) Filterbuy 18x18x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters... $40.16
15 Filterbuy 18x24x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.38 x 23.38 x 0.75 Inches) Filterbuy 18x24x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters... $36.68
16 True Blue Allergen 18x30x1 Air Filter , MERV 11, 4-Pack True Blue Allergen 18x30x1 Air Filter , MERV 11, 4-Pack $39.96
17 Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 19.50 x 0.75 Inches) Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters... $27.10
18 Filtrete 18x24x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack (exact dimensions 17.81 x 23.81 x 0.78) Filtrete 18x24x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack (exact... $44.99
19 Filterbuy 14x18x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 13.50 x 17.50 x 0.75 Inches) Filterbuy 14x18x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters... $39.12
20 Filterbuy 20x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 19.50 x 0.75 Inches) Filterbuy 20x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters... $30.28

There are a lot of products and services available in the market. Consumers find it difficult to choose the best product that meets their needs. In order to help consumers with that process, we have compiled a list of Top 20 Best 18X18X1 Air Filter, which will allow them to make a more informed decision when buying any product or service.

Before finalizing these products, our team considered numerous factors, such as customer feedback, features, specifications, and price. This list is a useful tool for all of our readers who are looking for The 20 Best 18X18X1 Air Filter. Hopefully you find it useful!

Best 18X18X1 Air Filter

Aerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4"x17 3/4"x3/4")

$38.63  in stock
2 new from $38.63
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Nominal size: 18x18x1; Actual size: 17 3/4"x17 3/4"x3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5.
  • Designed to filter microscopic particles such as lint, dust mites, spores, and pollen
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

Aerostar 18x18x1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4" x 17 3/4" x 3/4")

$54.28
$46.78
 in stock
2 new from $46.78
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Nominal size: 18x18x1; Actual size: 17 3/4"x17 3/4"x3/4"; This MERV 13 filter is comparable with MPR 1500-1900 & FPR 10.
  • Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, smoke, viruses, and bacteria
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

Arm & Hammer Max Allergen & Odor Reduction 18x18x1 Air and Furnace Filter, MERV 11, 4-Pack

$36.99  in stock
3 new from $36.99
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Maximum odor reduction unscented pleated air filter
  • Allergen air filter plus enhanced odor reduction
  • Built in carbon granules have large capacity for absorbing odors
  • MERV 11 rating allergen reduction performance
  • Lasts up to 90 days

Filtrete 18x18x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 6-Pack (exact dimensions 17.81 x 17.81 x 0.78)

$134.99  in stock
2 new from $134.99
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system
  • 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
  • 1900 MPR has a rating of MERV 13
  • 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

E-Z flow II 18x18x1 Air Filter Pack of 12

$37.95  in stock
8 new from $37.95
Amazon.com
as of March 17, 2022 2:35 am

Features

  • EZ Flow II Spun Fiberglass Disposable Furnace Filter.
  • Flat Panel.
  • No Metal Media Retainers.
  • No Metal Media Retainers.
  • 30 Day Filter.

Filtrete 18x18x1, AC Furnace Air Filter, MPR 600, Clean Living Dust Reduction, 6-Pack (exact dimensions 17.81 x 17.81 x 0.81)

$50.37  in stock
2 new from $50.37
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. air filters for your furnace, air conditioner or HVAC system
  • 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 large particles such as lint, household dust and dust mite debris
  • MPR 600 has a rating of MERV 7
  • The higher the MPR, the more microparticles - such as pollen, pet dander and smoke - your filter will capture from the air passing through it

Nordic Pure 18x18x1 MERV 8 Pleated AC Furnace Air Filters 6 Pack

$39.69
$36.73
 in stock
3 new from $36.73
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Nominal Size: 18 x 18 x 1, Actual Size: 17 3/4 x 17 3/4 x 3/4 (17. 75 x 17. 75 x 0. 75)
  • MERV 8 and FPR 6 is equivalent to MPR 800
  • Removes lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants
  • Lasts up to 3 months, depending on your unique home or office environment
  • Made in the USA

Filterbuy 18x18x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (2-Pack, Silver)

$22.54  in stock
2 new from $22.54
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 18x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.5 x 17.5 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

Filterbuy 18x18x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (4-Pack, Silver)

$33.24  in stock
2 new from $33.24
1 used from $27.55
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 18x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.5 x 17.5 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

E-Z Flow Air Filter, MERV 4, 18 x 18 x 1-Inch, 12-Pack

$54.11  in stock
3 new from $54.11
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Pack of 12 disposable UL Class II rated air filters designed for protection of furnace and central air units
  • MERV 4 rating: Removes household dust, pollen, and lint
  • Continuous chipboard design guards against corner separation while the one-sided metal media retainer adds to the filter strength
  • Each filter maintains efficiency for up to 30 days
  • Compatible with HVAC systems requiring filters sized 18" x 18" x 1"

Filterbuy 18x18x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (4-Pack, Gold)

$37.16  in stock
2 new from $37.16
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 18x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.5 x 17.5 x 0.75 inches)
  • MERV 11 synthetic media (comparable with MPR 1000-1200 & FPR 7) protects homes from pets or allergies by trapping 95% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

Filterbuy 18x18x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (3-Pack, Silver)

$26.40  in stock
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 18x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.5 x 17.5 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

Filterbuy 14x18x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (4-Pack, Silver)

$38.72  in stock
2 new from $38.72
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 14x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 13.50 x 17.50 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

Filterbuy 18x18x1 Air Filter MERV 11, Pleated HVAC AC Furnace Filters (12-Pack, Gold)

$93.84  in stock
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 18x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.5 x 17.5 x 0.75 inches)
  • MERV 11 synthetic media (comparable with MPR 1000-1200 & FPR 7) protects homes from pets or allergies by trapping 95% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

Filterbuy 14x18x1 Air Filter MERV 8 (Allergen Odor Eliminator), Pleated HVAC AC Furnace Filters with Activated Carbon (2-Pack, Black)

$27.72  in stock
2 new from $27.72
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 14x18x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 13.50 x 17.50 x 0.75 inches)
  • MERV 8 (Odor Eliminator) synthetic media (comparable with MPR 600 & FPR 5) protects homes from adverse smells while trapping 90% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

Filterbuy 18x30x1 Air Filter MERV 8, Pleated HVAC AC Furnace Filters (12-Pack, Silver)

$95.64  in stock
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 18x30x1 replacement air filters for your furnace, air conditioner, or HVAC system (actual size: 17.75 x 29.75 x 0.75 inches)
  • MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow
  • 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
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials

Flanders PrecisionAire 84857.011218 12 by 18 by 1 NaturalAire with Baking Soda, 4-Pack

$23.96  in stock
2 new from $23.96
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • 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, pollen, dirt, mold spores and more
  • 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

Aerostar 18x20x1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 17 3/4"x 19 3/4" x 3/4")

$37.99  in stock
2 new from $37.99
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Nominal size: 18x20x1; Actual size 17 3/4"x 19 3/4" x 3/4"; This MERV 11 filter is comparable with MPR 1000-1200 & FPR 7.
  • Designed to filter microscopic particles such as lint, dust mites, spores, pollen, pet dander, fine dust, and smoke
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

Filtrete 12x12x1, AC Furnace Air Filter, MPR 1500, Healthy Living Ultra Allergen, 2-Pack (exact dimensions 11.81 x 11.81 x 0.78)

$37.80  in stock
2 new from $37.80
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Helps promote a healthy home by reducing airborne dust, allergens, bacteria & viruses
  • 4x better small bacteria and virus capture {Refers to bacteria and viruses that are less than 1 micron in size}
  • Electrostatically charged to attract and capture microscopic airborne particles
  • Carries a 1500 Microparticle Performance Rating (MPR)
  • Lasts up to 3 months

Aerostar 12x12x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 11 3/4"x11 3/4"x3/4")

$32.85  in stock
2 new from $32.85
Free shipping
Amazon.com
as of March 17, 2022 2:35 am

Features

  • Nominal size: 12x12x1; Actual size: 11 3/4"x11 3/4"x3/4"; This MERV 8 filter is comparable with MPR 600 & FPR 5.
  • Designed to filter microscopic particles such as lint, dust mites, spores, and pollen
  • Simple to install and a cost-effective step towards a healthier home environment. For best results, change your filters every 60 to 90 days but increase frequency to 30 days during peak summer and winter months
  • 100% synthetic electrostatic media for high efficiency with low air flow resistance
  • Manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions making the world safer, healthier & more productive

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