Hero image 0 of Filter King 20x21x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 20 x 21 x .75", 0 of 5
Filter King 20x21x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A/C Furnace Filters | MADE IN USA | Actual Size: 20 x 21 x .75"
Key item features
- FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 20" x 21" x 1" - Actual Size: 20" x 21" x .75"
- MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters
- CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours.
- FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home.
Specs
- Minimum efficiency reporting values (merv)8
- Contaminants removedPollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses
- BrandFilter King
- FeaturesPleated
- Thickness1"
- MaterialPleated
Current price is USD$45.95
Price when purchased online
- Free shipping
Free 30-day returns
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Columbus, 43215
Arrives by Mon, Apr 20
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Sold and shipped by Filter King LLC
4.549689440993789 stars out of 5, based on 322 seller reviews(4.5)322 seller reviews
Free 30-day returns
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About this item
Product details
Filter King Merv 8 20x21x1 4-Pack Air Filter actual size is 20x21x.75. Our 20x21x1 Furnace Filters are designed to last up to 90 days. These pleated 1-inch air filters are ideal for maintaining the efficiency of your heating and cooling systems. Make sure you measure your filter. The actual size of this pleated Merv 8 filter is 20 x 21 x 3/4
- FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter | Size: 20" x 21" x 1" - Actual Size: 20" x 21" x .75"
- MAX PERFORMANCE: Our filters can last up to 90 DAYS before needing replacement. We do recommend to change your home air filter every 30 - 90 days for 1 inch filters. This will help maintain the longevity of the intended application like A/C and heaters
- CAPTURE MORE: Protect your home! The pleated design captures more particles and extends lifetime of the filter. Merv Filters trap airborne particles without impacting air flow. Feel the difference in 48 hours.
- FAST & EASY INSTALLATION: Open, Slide and Close! A simple yet effective replacement air filter for your home.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. Â
Specifications
Minimum efficiency reporting values (merv)
8
Contaminants removed
Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses
Brand
Filter King
Features
Pleated
Warranty
Warranty information
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
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Showing 1-3 of 28 reviews
Aug 5, 2025
BryanElliott
5 out of 5 stars review
Seller Verified Purchase
Great customer service
I made a misclick on the order and you guys ate my mistake with no hassle. I am now a very happy subscriber!
Review from filterking.com
Helpful?20XQ8OH5NMOI182800413
Dec 28, 2025
Elsa B.
5 out of 5 stars review
Seller Verified Purchase
20,x21x1
I'm very satisfied with your service and with the filters
Review from filterking.com
Helpful?20XQ8OH5NMOI182800413
Aug 9, 2025
Juan A.
5 out of 5 stars review
Seller Verified Purchase
Great product at a decent
Great product at a decent price. Highly recommend.
Review from filterking.com
Helpful?20XQ8OH5NMOI182800413
