Filterbuy 21x23x1 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.50 x 22.50 x 0.75)

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filterbuy 21x23x1 air filter merv 11 superior pet amp allergy defense 2-pack electrostatic pleated hvac ac furnace filters replacement made in usa actual size 2050 x 2250 x 075

$ 40.84

Last price was updated on: 12th Dec 2025, 12:34 PM

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Current Price $40.84

$35.28

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$40.84

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Price History Benchmarks

Lowest Ever

$35.28

30th Jan 2022

Highest Ever

$40.84

4th Apr 2025

Average Price

$40.11

16 data points

Last 3M Low

$40.84

19th Nov 2025

Last 6M Low

$40.84

19th Nov 2025

Last 12M Low

$40.84

4th Apr 2025

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Product Variants

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Product Technical Information

Product Code	B09P1YYD76
Market Place	amazon.com
Market Place Name	Amazon.com
Brand Name	Filterbuy
Rating	4.5 ( 19879 ratings )
Category	Furnace Filters
Model Number	AFB21x23x1M11Apk2
Item Color	Gold
Item Dimensions	21 x 23 x 1 inches

Frequently Asked Questions

What is the lowest price ever for this product? ▶

The lowest price for Filterbuy 21x23x1 Air Filter MERV 11 Superior Pet amp Allergy Defense 2-Pack Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA Actual Size 2050 x 2250 x 075 was $35.28 on 30th Jan 2022. This is the best recorded deal so far.
What is the highest price ever for this product? ▶

The highest price for Filterbuy 21x23x1 Air Filter MERV 11 Superior Pet amp Allergy Defense 2-Pack Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA Actual Size 2050 x 2250 x 075 was $40.84 on 4th Apr 2025. Prices have dropped since then.
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In the last 3 months, Filterbuy 21x23x1 Air Filter MERV 11 Superior Pet amp Allergy Defense 2-Pack Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA Actual Size 2050 x 2250 x 075 reached a low of $40.84 on 19th Nov 2025. Recent price trends may help you decide when to buy.
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