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Filterbuy 20x23x1 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches)

4.6 4.6 out of 5 stars 543 ratings

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Purchase options and add-ons

Brand Filterbuy
Material Polyester, Aluminum, Plastic
Product Dimensions 19.5"L x 22.5"W x 0.75"Th
MERV Rating 11.00
Compatible Devices Air Conditioner, Heat Pump, Air Cleaner, Furnace
Item Weight 1.15 Pounds
Product Grade Replacement Parts

About this item

  • 20x23x1 replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 19.50" x 22.50" x 0.75")
  • MERV 11 synthetic media (comparable with MPR 1000 - 1200 & FPR 7) protects homes from pets, allergies, and more by trapping 95% 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

Sheerness
5.0 5.0
Easy to install
4.8 4.8
Sturdiness
4.6 4.6
Value for money
4.6 4.6

Frequently bought together

$34.30 ($17.15/Count)
Get it as soon as Thursday, Mar 21
In Stock
Ships from and sold by Filterbuy.
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$34.26 ($17.13/Count)
Get it as soon as Thursday, Mar 21
In Stock
Ships from and sold by Filterbuy.
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Filterbuy 20x23x1 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches)
Filterbuy 20x23x1 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches)
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Accumulair Platinum 20x23x1 (Actual Size) MERV 11 Air Filter/Furnace Filters (4 pack)
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Price$34.30$45.27$34.97$60.99$43.02$40.07
Delivery
Get it as soon as Thursday, Mar 21
Get it as soon as Thursday, Mar 21
Get it Mar 22 - 26
Get it as soon as Monday, Mar 25
Get it as soon as Thursday, Mar 21
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to install
4.8
4.3
4.0
4.8
4.9
3.3
Value for money
4.6
4.2
4.5
4.6
4.7
3.3
Sturdiness
4.6
4.3
4.0
4.7
4.7
Sold By
Filterbuy
Filterbuy
Filter King LLC
BNX AccuMed
Filterbuy
Amazon.com
compatible devices
Air Conditioner, Furnace, Heat Pump, Air Cleaner
Air Conditioner, Furnace, Heat Pump, Air Cleaner
Air Conditioner, Furnace
Air Conditioner, Furnace
Air Conditioner, Furnace, Heat Pump, Air Cleaner
Furnace, Air Conditioner, Heat Pump, HVAC Unit
MERV rating
11
11
8
11
8
11
number of items
1
1
3
6
1
4
material
Plastic, Aluminum, Polyester
Plastic, Aluminum, Polyester
Polypropylene
Plastic, Aluminum, Polyester
Metal

From the brand


Product Description

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

Replacement Air Filter 20x23x1 (Actual Size: 19.50 x 22.50 x 0.75 Inches)

gold merv 11 banner badge

20x23x1 MERV 11

silver merv 8 banner badge

20x23x1 MERV 8

platinum merv 13 banner badge

20x23x1 MERV 13

black merv 8 odor eliminator banner badge

20x23x1 Odor Eliminator

Customer Reviews
4.7 out of 5 stars
584
4.8 out of 5 stars
2,664
4.6 out of 5 stars
319
4.7 out of 5 stars
326
Recommended Use
Superior Home & Business Standard Home & Business Optimal Home & Business Standard Home & Business
Comparable Ratings
MPR 1000-1200 & FPR 7 MPR 600 & FPR 5 MPR 1500-1900 & FPR 10 MPR 600 & FPR 5
Filtration Effectiveness
95% Airborne Particles 90% Airborne Particles 98% Airborne Particles 90% Airborne Particles
Particle Size
1 - 3 Microns 3 - 10 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 20x23x1 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches)


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
543 global ratings

Customers say

Customers like the ease of installation and quality of the air filter. For example, they mention it's easy to install and well constructed. That said, opinions are mixed on the size.

AI-generated from the text of customer reviews

28 customers mention25 positive3 negative

Customers like the quality of the air filter. They say it's well constructed, lasts longer, and filters a lot. Some customers also mention that the quality and quantity of air seems to improve with the use of the filter.

"Awesome place to find my odd sized filters. They work great" Read more

"Fairly sturdy, fits well." Read more

"This is a high quality unit that filters 99%+ allergens, germs & odors from your interior air...." Read more

"Great product" Read more

6 customers mention6 positive0 negative

Customers find the installation process of the HVAC air filter to be easy. They mention it fits perfectly and is convenient to order from big box stores.

"It actually fit & easy to install" Read more

"Odd size not found in big box storesThis was convenient and quality is good" Read more

"This product was exactly what I needed. Great price and easy to install." Read more

"Easy to install & the fit perfectly. Definitely purchasing again." Read more

5 customers mention5 positive0 negative

Customers appreciate the value of the air filter.

"I reordered thee multiple times from Amazon! Great product and value. Wish they wee a 3pack!!" Read more

"This product was exactly what I needed. Great price and easy to install." Read more

"Great value and delivered quickly" Read more

"...Amazon was the only place I could order an awkward size for a reasonable price." Read more

22 customers mention15 positive7 negative

Customers are mixed about the size of the air filter. Some mention that it fits their odd size opening and furnace perfectly, while others say that the size is off and hard to find.

"Perfect size all my local hardware stores including Home Depot, Ace, Walmart and Lowe’s did not carry this specific size. Very quick shipping" Read more

"Fairly sturdy, fits well." Read more

"Was not true to size on box. Would not go in slot for filter on heat pump I have had for years.and replaced many times...." Read more

"It actually fit & easy to install" Read more

Top reviews from the United States

Reviewed in the United States on August 8, 2023
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Reviewed in the United States on September 2, 2023