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BestAir 20 in. W X 20 in. H X 1 in. Carbon 11 MERV Pleated Air Filter
BestAir 20 in. W X 20 in. H X 1 in. Carbon 11 MERV Pleated Air Filter

BestAir 20 in. W X 20 in. H X 1 in. Carbon 11 MERV Pleated Air Filter

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

MERV 11 carbon filtration knocks out dust, pollen, smoke, and mold spores before they cycle through your home.
Bestair MPN B1-AH-2020-11-6 In Stock & Ready to Ship
$83.94
$13.99 each · sold by the case of 6 Free shipping on orders over $149
Ships within 24 hours · most orders arrive in about 2 business days
Cases of 6 · Order in multiples of 6
Ships free on orders over $149 $14.99 flat shipping until your order reaches $149.

Sold by the Case

$83.94 per case of 6

Save $12.60 on orders $75+. Spend $75 or more to unlock 15% off every case — applied automatically at checkout. Free shipping at $149.

Ships as a complete case of 6. Free shipping on orders $149 and up.

About Product Overview

This BestAir 20x20x1 pleated furnace filter carries a MERV 11 rating, putting it in the high-efficiency range for everyday forced-air heating and cooling systems. The carbon filter media is built to trap a wide range of airborne particles, from dust and pollen to mold spores and smoke, making it a solid pick for households dealing with allergies or general indoor air quality concerns. Made in the USA and sized to fit standard 20x20x1 slots.

  • MERV/MPR Rating: 11 (High Efficiency)
  • Filter Material: Carbon, Pleated
  • Filters bacteria, viruses, smoke, pollen, mold spores, and dust/lint
  • Actual Size: 19-1/2 x 19-1/2 x 3/4 inches

The Details Specifications

Brand Bestair
Model / MPN B1-AH-2020-11-6
UPC 078757023047
Weight 3 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

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On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Bestair. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Bestair

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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a familiar banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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