Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)
Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)
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Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)

4.8 stars out of 27 reviews
(4.8)|
27 ratings

Key item features

  • Exact Dimensions: These 18x18x1 replacement air filters have an actual size of 17.75" x 17.75" x 0.75", suitable for furnaces, AC units, heat pumps, or HVAC systems.
  • Superior Filtration: Featuring MERV 8 synthetic media, comparable to MPR 700 & FPR 5, they trap 90% of dust particles and protect against mold, pollen, and other debris without impacting airflow.
  • Durable Construction: An electrostatically charged design with 14 pleats per foot captures more harmful particles and lasts three times longer than fiberglass models, requiring replacement every 90 days.
  • Enhanced Integrity: Industrial-grade beverage board frames with dual wire backings offer superior structural integrity, resisting temperatures up to 200°F and moisture, outperforming standard cardboard.
  • Effortless Installation: Easy-to-understand arrows simplify installation by clearly indicating the correct airflow direction for proper filter placement.
  • Eco-Friendly Manufacturing: All components are 100% manufactured in the United States using recyclable materials, providing an environmentally conscious air quality solution.
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Current price is Now $39.96
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was $58.42
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Columbus, 43215
Arrives by Wed, Feb 11
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Sold and shipped by FilterbuyPro Seller
4.578001057641459 stars out of 5, based on 3782 seller reviews(4.6)
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Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)
Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)
current price Now $39.96, Was $58.42
Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)
4.8 out of 5 Stars. 27 reviews
Aerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack
Aerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack
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Filterbuy 21.5x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
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Filterbuy 15.25x15.25x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (3-Pack)
current price $47.97
Filterbuy 15.25x15.25x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (3-Pack)
Filterbuy 17x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 17x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
current price $45.99
Filterbuy 17x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 17.25x17.25x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 17.25x17.25x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
current price $44.99
Filterbuy 17.25x17.25x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 19x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 19x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
current price $44.99
Filterbuy 19x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 18x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 18x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
current price $43.99
Filterbuy 18x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 14x27x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 14x27x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
current price $42.99
Filterbuy 14x27x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 27x27x2 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Filterbuy 27x27x2 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
current price $37.99
Filterbuy 27x27x2 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Comparison Chart:
Minimum efficiency reporting values (merv)8Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)8Aerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack8Filterbuy 21.5x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)8Filterbuy 15.25x15.25x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (3-Pack)8Filterbuy 17x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)8Filterbuy 17.25x17.25x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)8Filterbuy 19x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)8Filterbuy 18x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)8Filterbuy 14x27x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)8Filterbuy 27x27x2 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Contaminants removedAllergensFilterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)DustAerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 PackAllergensFilterbuy 21.5x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)AllergensFilterbuy 15.25x15.25x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (3-Pack)AllergensFilterbuy 17x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)AllergensFilterbuy 17.25x17.25x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)AllergensFilterbuy 19x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)AllergensFilterbuy 18x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)AllergensFilterbuy 14x27x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)AllergensFilterbuy 27x27x2 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
FeaturesElectrostaticFilterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)ElectrostaticAerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 PackElectrostaticFilterbuy 21.5x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)ElectrostaticFilterbuy 15.25x15.25x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (3-Pack)ElectrostaticFilterbuy 17x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)ElectrostaticFilterbuy 17.25x17.25x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)ElectrostaticFilterbuy 19x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)ElectrostaticFilterbuy 18x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)ElectrostaticFilterbuy 14x27x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)ElectrostaticFilterbuy 27x27x2 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
Microparticle performance rating700Filterbuy 18x18x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (6-Pack)8Aerostar 18x18x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack700Filterbuy 21.5x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)700Filterbuy 15.25x15.25x1 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (3-Pack)700Filterbuy 17x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)700Filterbuy 17.25x17.25x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)700Filterbuy 19x23x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)700Filterbuy 18x20x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)700Filterbuy 14x27x4 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)700Filterbuy 27x27x2 MERV 8 Dust Defense, Pleated HVAC AC Furnace Air Filters (1-Pack)
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4.8 out of 5 stars
stars27 ratings22 reviews
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Showing 1-3 of 22 reviews

Aug 24, 2025
Suzanna
Sold and shipped byFilterbuy
5 out of 5 stars review

Verified Purchase

These are the very best filters I have ever purchased. I have a very expensive unit and it is important to change the filter monthly so these are the perfect fit for my unit. One out of five I give them a five.

Incentivized Review
Helpful?3CEHO0ZKU9TI154429907
Nov 6, 2025
Roberta
Top Reviewer
Sold and shipped byFilterbuy
5 out of 5 stars review

Verified Purchase

Perfect fit. I put it right in. I will order more in the future.

Helpful?3CEHO0ZKU9TI154429907
Aug 26, 2025
MaryLou
Sold and shipped byFilterbuy
5 out of 5 stars review

Verified Purchase

air conditioner filters

prompt delivery, easy to install

Incentivized Review
Helpful?3CEHO0ZKU9TI154429907