Filterbuy 20x21x1 Air Filter MERV 11 Superior Pet & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 20.50 x 0.75)

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filterbuy 20x21x1 air filter merv 11 superior pet amp allergy defense 6-pack electrostatic pleated hvac ac furnace filters replacement made in usa actual size 1950 x 2050 x 075

$ 95.16

Last price was updated on: 12th Dec 2025, 12:38 PM

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Price Score: Good

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Current Price $95.16

$76.93

Lowest

$100.36

Highest

Buying Advice:
Good – Worth buying. 56% chance price goes up. Buy soon.

Price History Benchmarks

Lowest Ever

$76.93

28th Mar 2016

Highest Ever

$100.36

26th Jun 2024

Average Price

$92.86

27 data points

Last 3M Low

$85.64

3rd Nov 2025

Last 6M Low

$85.64

3rd Nov 2025

Last 12M Low

$85.64

3rd Nov 2025

Price History Chart

Product Variants

Image of Filterbuy 16x25x1 Air Filter MERV 11 Superior Pet & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 15.50 x 24.50 x 0.75)

$44.94

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$100.38

Filterbuy 13x24x1 Air Filter MERV 11 Superior Pet & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 13.00 x 24.00 x 0.75)

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$74.94

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$44.94

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$126.36

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Product Technical Information

Product Code	B00CK03LX6
Market Place	amazon.com
Market Place Name	Amazon.com
Brand Name	Filterbuy
Rating	4.6 ( 10447 ratings )
Category	Furnace Filters
Model Number	AFB20x21x1M11Apk6
Item Color	Gold
Item Dimensions	20 x 21 x 1 inches

Frequently Asked Questions

What is the lowest price ever for this product? ▶

The lowest price for Filterbuy 20x21x1 Air Filter MERV 11 Superior Pet amp Allergy Defense 6-Pack Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA Actual Size 1950 x 2050 x 075 was $76.93 on 28th Mar 2016. This is the best recorded deal so far.
What is the highest price ever for this product? ▶

The highest price for Filterbuy 20x21x1 Air Filter MERV 11 Superior Pet amp Allergy Defense 6-Pack Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA Actual Size 1950 x 2050 x 075 was $100.36 on 26th Jun 2024. Prices have dropped since then.
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The average price for Filterbuy 20x21x1 Air Filter MERV 11 Superior Pet amp Allergy Defense 6-Pack Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA Actual Size 1950 x 2050 x 075 is $92.86 (27 data points). This helps you compare current deals.
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In the last 3 months, Filterbuy 20x21x1 Air Filter MERV 11 Superior Pet amp Allergy Defense 6-Pack Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA Actual Size 1950 x 2050 x 075 reached a low of $85.64 on 3rd Nov 2025. Recent price trends may help you decide when to buy.
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Worth buying. The price is good, but you may wait for a better deal. 56% chance price goes up. Price may increase soon.