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Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense, Pleated HVAC AC Furnace Filter Replacement, 4-Pack
Key item features
- UNIVERSAL COMPATIBILITY: 18x20x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 17.50" x 19.50" x 0.75")
- MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow
- LONG-LASTING FILTRATION: Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance)
- SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
- MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality that is trusted by millions of homes
Specs
- Air filter size18 x 20 x 1
- Minimum efficiency reporting values (merv)8
- FeaturesElectrostatic
- Microparticle performance rating700
Reviews summary
Pros
- : Fits perfectly in intended space.
- : Made with good materials and fits well.
- : Offers discounts for bulk purchases.
- : Easy online purchasing process.
Generated by AI
Current price is USDNow $31.46
You save $3.50
was $34.96$34.96
You save$3.50
Price when purchased online
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Arrives by Wed, Jun 10
|Sold and shipped by Filterbuy
4.586223391533126 stars out of 5, based on 4181 seller reviews(4.6)4181 seller reviews
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About this item
Product details
The Filterbuy replacement air filter 18x20x1 (actual size: 17.50" x 19.50" x 0.75") ensures that your furnace, air conditioner, heat pump, or HVAC system is circulating the cleanest air possible to help preserve your budget and healthy lifestyle. MERV 8 synthetic media (comparable with Clean Living Dust Defense MPR 700 & FPR 5) is recommended in most scenarios with its capability to trap 90% of dust particles while protecting your home or business from lint, pollen, mold, dander, and other forms of debris without impacting air flow. High quality construction features an electrostatically charged design with 14 pleats per foot that captures more harmful particles and prolongs the products lifespan by three times that of fiberglass models (replace every 90 days for best results). Plus, our industrial grade beverage board frames are paired with dual wire backings that significantly outperform traditional cardboard compositions by improving structural integrity with their ability to endure temperatures up to 200 degrees Fahrenheit and withstand exposure to moisture. Installation is also made simple with the addition of easy-to-understand arrows that help identify the direction of air flow and subsequently the way the filter needs to be placed. To top it off, all our components are 100% manufactured within the United States and designed with recyclable materials, providing an eco-friendly alternative to enhancing your air quality.
- UNIVERSAL COMPATIBILITY: 18x20x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 17.50" x 19.50" x 0.75")
- MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow
- LONG-LASTING FILTRATION: Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance)
- SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures
- MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality that is trusted by millions of homes
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Air filter size
18 x 20 x 1
Minimum efficiency reporting values (merv)
8
Brand
Filterbuy
Features
Electrostatic
Warranty
Warranty information
Defective items and products that were shipped incorrectly are subject to a refund or replacement on a case by case basis. Please contact our customer support team for more information if you experience any issues.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Fits perfectly in intended space.
- : Made with good materials and fits well.
- : Offers discounts for bulk purchases.
- : Easy online purchasing process.
Generated by AI
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Showing 1-3 of 294 reviews
Dec 24, 2025
Jeanne
5 out of 5 stars review
Verified Purchase
Had exactly what I needed and receive in 3 days …. Very pleased!!
Helpful?3HCCGK5J6YBQ144105881
Sep 13, 2025
JM
5 out of 5 stars review
Verified Purchase
Good job, Walmart!
The filters were delivered very quickly, they are competetive with other suppliers.
Helpful?3HCCGK5J6YBQ144105881
Oct 28, 2025
Jeffrey
5 out of 5 stars review
Verified Purchase
Greek delivery service
Helpful?3HCCGK5J6YBQ144105881
