18x20x1 MERV 11 AC & Furnace Filters (6 Pack)

Made in USA
  • SP-18x20x1-P11M6

  • 5 stars
  • (14)
List Price $91.98

Our Price: $45.99

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Made to order (Ships in 1 business day)
Replace every 3 months
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  • Product Overview
  • Reviews
This item is made to order, non-returnable, and ships within 1 business day. Please check the actual dimensions listed below prior to ordering.
MERV 11 18x20x1 Furnace Filter Overview
  • Actual dimensions of the filter are 17.5" x 19.5" x 0.75"
  • Long-lasting value package
The MERV 11 18x20x1 furnace & air conditioner filter will remove the following contaminants:
  • Lint & Dust
  • Dust Mite Debris
  • Pollen
  • Mold Spores
  • Pet Dander
  • Auto Emissions
  • Smoke
Air Filter FAQs

1 out of 1 people found this review helpful.
5.0 Stars

Great product!

By Man in 30s on 4/23/2021 3:51:41PM

Great product! Great customer service and fast shipping!

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1 out of 1 people found this review helpful.
5.0 Stars

Size not stocked at Big Box Stores?

By Anonymous from Falls Church, VA on 5/19/2021 7:53:53AM

Having searched without sucess for the required filter size at my local big box stores, I found the ALL FILTER site. I entered my filter size and was rewarded with a price that beat all other online offers! I placed an order, and about 5-days later, my filters arrived. A perfect fit, excellent quality, and a great price. Why hunt for filters you need and pay a high price at your local store? Just order it and be done—great price on MERV 11 rated filters.

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1 out of 1 people found this review helpful.
5.0 Stars

Great product

By Man in 30s from Athens, GA on 8/18/2020 11:35:57AM

Fast shipping! Great prices!

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0 out of 0 people found this review helpful.
5.0 Stars

Great service,very easy to deal with

By Female in 60s and over from Bellefonte, PA on 4/13/2023 6:58:06PM

I looked every for the size filter I needed. I was in Home Depot and ran into a neighbor. I told him I was searching for filters and was unable ti find my size. He told me about Allfilters…I went home and ordered.

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0 out of 0 people found this review helpful.
5.0 Stars

Would purchase again

By Male on 9/16/2022 9:46:15AM

Nice filter and fit properly

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0 out of 0 people found this review helpful.
5.0 Stars

Great filters

By Male in 50s on 3/14/2023 9:05:12PM

Got a great deal on really good air filters, usually can't find the size for my a/c but got a great deal here.

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0 out of 0 people found this review helpful.
5.0 Stars

Good product, fair price, and quick delivery

By Male in 60s and over from Sunrise Beach , MO on 10/18/2022 1:01:59PM

Received in a few days. Fit perfectly in my furnace which is non-standard size. Appears to be good quality.

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0 out of 0 people found this review helpful.
5.0 Stars

Great product

By Male in 60s and over from Mesquite, TX on 3/10/2022 12:55:25PM

Great price, great item, super fast shipping

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