Filterbuy 20x25x4 Air Filter MERV 8 Dust Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.5

4.4 4.4 out of 5 stars | 5,409 ratings

Price: 42.63

Last update: 01-07-2025


About this item

20x25x4 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.50" x 24.50" x 3.63"), also compatible with White Rodgers (ACM2000M, ACM2000M-108, FR2000M-108, FR2000M-111), Pro1 IAQ (F2008, F2012, 717267120784)
MERV 8 synthetic media (comparable with MPR 600 & FPR 5) protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow
High quality construction features an electrostatically charged design with 8 pleats per foot that captures more harmful particles and lasts 3x longer than fiberglass models (replace every 90 days for best performance)
Easy installation beverage board frames with dual wire backings improve structural integrity and outperform standard cardboard designs by resisting extreme temperatures
Industrial grade components are 100% manufactured in the United States and designed with recyclable materials

Product information

Technical Details


Top reviews from the United States

Peter Jay
5.0 out of 5 stars Perfect
Reviewed in the United States on July 9, 2024
Just what I needed to keep the central A/C running well. Good price too.

Some say these are undersized for their rating. THIS IS THE WAY THEY ALL ARE.

They are intentionally slightly smaller than their size numbers. This is normal!
Kathryn Miskokomon
5.0 out of 5 stars A great savings over the big box stores
Reviewed in the United States on August 20, 2024
Product Review: 25”x25”x4” Furnace Air Filters

I recently purchased the 25”x25”x4” furnace air filters, and I’m extremely satisfied with both their performance and affordability.

Performance: These filters work exceptionally well in maintaining air quality and ensuring efficient furnace operation. They fit perfectly and effectively capture dust, allergens, and other particles, contributing to a cleaner and healthier home environment.

Affordability: One of the standout aspects of this purchase was the cost. I compared prices with big box stores, where the same filters were priced at twice the amount. Not only did I get high-quality filters, but I also saved a significant amount of money.

Value for Money: Given their performance and the substantial savings compared to retail prices, these filters offer excellent value for money. They prove that you don’t have to spend a fortune to get quality air filtration.

Conclusion: If you’re in need of reliable and cost-effective furnace air filters, I highly recommend the 25”x25”x4” filters. They deliver great performance at a fraction of the price you’d pay elsewhere, making them a smart choice for anyone looking to keep their air clean without breaking the bank.
Amazon Customer
5.0 out of 5 stars Perfect size
Reviewed in the United States on November 15, 2024
It’s a great buy for a two-pack, and the dimensions were just under the 20x25x4 inch requirement which fit perfectly in our unit.
GLWG
4.0 out of 5 stars My fault for missing the "Actual sizing" but saying its 20x25x4 is misleading
Reviewed in the United States on November 14, 2024
Way too small, left a large gap in the space so doesn't filter properly. Ill need to buy a new filter that actually fits. Will be fine if you have a smaller furnace but if you actually need 20x25x4 then dont buy this.
Brittany
5.0 out of 5 stars Good price
Reviewed in the United States on November 16, 2024
They’re air filters. It’s a good price for 2 and I’ve been told by AC professionals mine are so clean at the 3 month reminder I should wait 6. Yea my house is clean, but it’s so nice not having to replace every light bill!
Bruce Mege
5.0 out of 5 stars Perfect fit
Reviewed in the United States on December 10, 2024
Perfect fit.
reader
1.0 out of 5 stars smaller than I thought
Reviewed in the United States on December 4, 2024
I would not buy this again. It's significantly smaller than the Honeywell filter it replaced. I should have paid more attention to the "actual size." I assumed that 20x25x4 filters aren't really exactly that size (like 2x4 lumber) but I guess I figured they were all some standard size. Nope. This on is fully 3/4" thinner than my old Honeywell. Also smaller on other dimensions.
Chanel Wagner-Bensinger
5.0 out of 5 stars Filterbuy 20x25x4 Air Filter MERV 8 Dust Defense is the gnarly guardian of clean air
Reviewed in the United States on May 10, 2024
Whoa, dude, the Filterbuy 20x25x4 Air Filter MERV 8 Dust Defense is the gnarly guardian of clean air in my beach shack!

Before I had these bad boys, my place was like, totally filled with more particles than sand on the beach after a rad surf sesh. But now? It’s like a smooth ride down a clean wave at dawn, man.

These filters are tougher than a double overhead wave! They snag all the nasty bits from the air, like dust and pollen, keeping my pad fresher than morning sea breeze. And installation? Easier than popping up on a longboard, bro. Just slide it in, and you're ready to catch the clean air waves!

Plus, they're like, super durable, man. They last longer than my sunscreen does on a hot day in the sun. And with a pack of these, I’m set for the season, ready to host the after-surf BBQ without sneezin’ up a storm.

5 stars for making my air as pure as the ocean breeze! Highly recommend it to any dude or dudette who wants to keep their crib as chill as a sea turtle’s pace. Keep it clean, keep it rad! ????

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