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Filterbuy 12x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 11.75 x 24.75 x 0.75 Inches)

4.6 4.6 out of 5 stars 356 ratings

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Purchase options and add-ons

Brand Filterbuy
Material Polyester, Aluminum, Plastic
Product Dimensions 11.75"L x 24.75"W x 0.75"Th
MERV Rating 8.00
Compatible Devices Air Conditioner, Heat Pump, Air Cleaner, Furnace
Item Weight 1.65 Pounds
Product Grade Replacement Parts

About this item

  • 12x25x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 11.75" x 24.75" x 0.75")
  • 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, pleated design that captures more harmful particles and prolongs the products lifespan by 3 times that of fiberglass models
  • Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs
  • All components are manufactured within the United States and designed with recyclable materials
See more product details

Customer ratings by feature

Easy to install
4.6 4.6
Value for money
4.6 4.6
Sturdiness
4.5 4.5

Frequently returned item

Check the product details and customer reviews to learn more about this item.

Frequently bought together

$44.28 ($11.07/Count)
Get it as soon as Tomorrow, Mar 27
In Stock
Ships from and sold by Filterbuy.
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$32.28 ($8.07/Count)
Get it as soon as Tomorrow, Mar 27
In Stock
Ships from and sold by Filterbuy.
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$35.32 ($8.83/Count)
Get it as soon as Tomorrow, Mar 27
In Stock
Ships from and sold by Filterbuy.
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Filterbuy 12x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 11.75 x 24.75 x 0.75 Inches)
Filterbuy 12x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 11.75 x 24.75 x 0.75 Inches)
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Price$44.28$35.94$45.68$27.72$31.96$42.92
Delivery
Get it as soon as Tomorrow, Mar 27
Get it as soon as Tomorrow, Mar 27
Get it as soon as Tomorrow, Mar 27
Get it as soon as Tomorrow, Mar 27
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to install
4.6
5.0
4.6
4.6
4.4
Value for money
4.6
5.0
4.6
4.1
3.7
Sturdiness
4.5
5.0
4.6
4.4
3.8
Sold By
Filterbuy
Filterbuy
Filterbuy
Filterbuy
Amazon.com
Hearthshire
compatible devices
Air Conditioner, Furnace, Heat Pump, Air Cleaner
Air Conditioner, Furnace, Heat Pump, Air Cleaner
Air Conditioner, Furnace, Heat Pump, Air Cleaner
Air Conditioner, Furnace, Heat Pump, Air Cleaner
Air Conditioner, Furnace, Heat Pump
Furnace
MERV rating
8
8
8
8
11
4
number of items
1
1
1
1
1
1
material
Plastic, Aluminum, Polyester
Plastic, Aluminum, Polyester
Plastic, Aluminum, Polyester
Plastic, Aluminum, Polyester
Polyester
Fiberglass

From the brand


Product Description

smiling man piggybacks daughter in clean house as filterbuy air filters help them breathe freely

Replacement Air Filter 12x25x1 (Actual Size: 11.75 x 24.75 x 0.75 Inches)

silver merv 8 banner badge

12x25x1 MERV 8

gold merv 11 banner badge

12x25x1 MERV 11

platinum merv 13 banner badge

12x25x1 MERV 13

black merv 8 odor eliminator banner badge

12x25x1 Odor Eliminator

Customer Reviews
4.6 out of 5 stars
356
4.2 out of 5 stars
11
4.6 out of 5 stars
14
4.7 out of 5 stars
31
Recommended Use
Standard Home & Business Superior Home & Business Optimal Home & Business Standard Home & Business
Comparable Ratings
MPR 600 & FPR 5 MPR 1000-1200 & FPR 7 MPR 1500-1900 & FPR 10 MPR 600 & FPR 5
Filtration Effectiveness
90% Airborne Particles 95% Airborne Particles 98% Airborne Particles 90% Airborne Particles
Particle Size
3 - 10 Microns 1 - 3 Microns 0.3 - 1 Microns 3 - 10 Microns
Dust & Debris
Mold & Pollen
Lint & Dander
Smog & Smoke
Bacteria
Odors
anatomy of an air filter blown out photo where the wiring pleats and frame are all shown separately

Choosing the Correct Filter Size

zoomed photo of white air filter frame showing nominal and actual size of 16x16x1 filter in green

Nominal Size vs. Actual Size

The nominal size is a shorthand number rounded to the nearest whole or half inch, normally in a larger font (ex: 16 x 16 x 1). Whereas the actual size is an exact measurement, normally in a smaller font, that depicts the filter's precise dimensions (ex: 15.75 x 15.75 x .75). All filters have both.

smiling man in blue holds extended tape measure in front of him to show how to measure an air filter

Measuring Your Air Filters

If your current air filter does not have a dimension listed on the frame, use a tape measure to record the length x width x depth to find the actual size. Then round these measurements up to the nearest inch to find a corresponding nominal size, which will be easier to locate when searching online.

Why should I change my air filter?

To maintain a healthy lifestyle, as breathing dirty air can put you at risk to develop asthma, allergies, and other respiratory ailments. Plus, old filters can cause system defects which may lead to unwanted expenses via energy costs and repairs.

Will these air filters fit my system?

Most of our filters are universally compatible, and will work with virtually any furnace, air conditioner, heat pump, or HVAC system. But if you see a specific brand name like Honeywell within a product title, then it is designed for an exact model.

How do I change my air filter?

Once you find the right size, turn off your power supply and remove the cover from your intake vent. You can then take out the old filter and dispose of it safely. Finally, just insert your new filter, replace the cover, and turn the power back on.

How often should I change my air filter?

We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean. But, this is subject to change based on filter size and variable factors for pet owners, allergy-sufferers, homes with children, etc.

How many air filters do I need?

This varies for every customer depending on specific needs like those referenced in the prior answer. However, our selection includes package quantities that range from 1 to 12 filters, so no matter what your situation may be, we've got you covered.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Filterbuy 12x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 11.75 x 24.75 x 0.75 Inches)


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
356 global ratings

Customers say

Customers like the quality and value of the air filter. They mention that it is well made, excellent and a great value. Opinions are mixed on the fit.

AI-generated from the text of customer reviews

14 customers mention12 positive2 negative

Customers like the quality of the air filter. They say it's well-made, excellent, and does the job.

"Good quality and easy to install with air directions on the side." Read more

"...It appears they are and they work well...." Read more

"You can't really take a pic but they are excellent filters." Read more

"...much at all yet, but mostly happy to find a filter that appears to be sturdy and good quality that FITS our unusual-sized furnace...." Read more

6 customers mention6 positive0 negative

Customers appreciate the value of the air filter. They say purchasing four together saves money and the quality and price of the filters are outstanding.

"...It appears they are and they work well. Purchasing four together saved money and I won't have to be concerned with getting new ones for awhile...." Read more

"this is a great item for the money we pay for." Read more

"The quality and price of the filters were outstanding. I ordered the wrong size initially and the customer service was fantastic resolving my error...." Read more

"Easy to order, reasonably priced and received quickly. I will place another order later ." Read more

8 customers mention5 positive3 negative

Customers are mixed about the fit of the air filter. Some mention that it fits perfectly, while others say that it's not true to size and would not fit their application.

"...a filter that appears to be sturdy and good quality that FITS our unusual-sized furnace...." Read more

"They fit no altering!" Read more

"...they fit perfect will buy again !" Read more

"Received product within several days, correct size, great quality! Just was we needed 👍🏼..." Read more

Top reviews from the United States

Reviewed in the United States on December 14, 2023
Reviewed in the United States on November 2, 2022
Reviewed in the United States on October 19, 2023
One person found this helpful
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Reviewed in the United States on December 15, 2023
One person found this helpful
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Reviewed in the United States on June 8, 2021
Reviewed in the United States on August 3, 2023
One person found this helpful
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Reviewed in the United States on July 6, 2023
Reviewed in the United States on January 8, 2024