The 6 Best 16X20X4 Air Filters (2022 reviews)

We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a filter. The Filtrete 16X20X4 Air Filter is exactly that - it's a simple filter that hits all the right notes. The filtrete 16x20x4 air filter fits even with the wrong size and it is flexible. Your home should be your sanctuary, starting with the air you breathe. In addition, it has a rating of merv 12.

The filter is designed with exclusive filtrete brand 3-in-1 technology from 3m to trap unwanted air particles while letting cleaner air flow through. Most importantly, the filtrete 16x20x4 air filter is less restrictive and it is good for the price point.

Almost all customers quickly discovered that the filter can rock back and forth and unfiltered air can pass around the filter edges, which is probably not a big deal, but not the point. Further, they strongly agree that the filter is supposed to block most dust, allergens, bacteria and some viruses. And, they say that the filter is the only one out of 4 other listings on amazon that actually fit. In conclusion, the tone of buyers is very positive and we believe that the filter suits the purpose.

Customers say that getting a ezflex furnace filter, along with filter is useful.

Top Customer Quotes:

This includes carbon filtration and also it is pretty much a no - brainer.
This fits perfectly snug into the lennox media cabinet.
This is a great filter but use it on larger furnaces.
This provides merv 12 protection....especially important in this covid environment.

Best For Customer Service: Aerostar 16X20X4 Air Filter

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If you often find yourself confused about convenient and suitable filter, Aerostar 16X20X4 Air Filter is your end point. The aerostar 16x20x4 air filter is great for the price, is good for less dust and it is single. For best results, change your filters every 60 to 90 days but increase the frequency to 30 days during peak summer and winter months. In addition, the filter is really well and it is much more.

Finally, the aerostar 16x20x4 air filter has been used for many years, is great for an excellent price and it is effective.

Almost all buyers quickly discovered that the filter fits more like a 15 x24. Also, a few say that the filter will move around, even get sucked into the opening occasionally. In addition, a few say that the filter is going to come out....it is going to be a struggle. With no doubts, this filter passed the test and had very satisfied buyers eager to share their experience.

Customers discovered that getting a perfect pleat air filters with duraflex medium, along with filter is useful.

Top Customer Quotes:

100% synthetic electrostatic media for high efficiency with low air flow resistance.
These fit correctly and it is highly recommended.
The filter would get full of hair and dander very quickly.
These are also the easiest to install because they fit properly.

Best For Nominal Size: Filterbuy 16X20X4 Air Filter

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Best part: Filterbuy 16X20X4 Air Filter costs comparatively low and it is available to ship in 24 hours. The filterbuy 16x20x4 air filter is residential and it is great for value for money. The filterbuy replacement airfilter 16x20x4 (actual measurements: 15.38" x 19.38" x 3.63") ensures that your furnace, air conditioner, or hvac system is circulating clean air to help preserve your budget and sanitary lifestyle. In addition, the filter makes for a great buy and it allows for a perfect fit.

Above all, the filterbuy 16x20x4air filter protects homes from dust, pollen, and more by trapping 90% of airborne particles without impacting air flow.

One customer says - "They are very good, However, the one problem (although small) is the real size is smaller than advertised. ". A few strongly agree that the filterbuy 16x20x4 merv 8 pleated ac furnace air filter has an actual size of 15 3/8 " x 19 3/8 " x 3 3/8.

Customers discovered that getting a merv 8 columbia air filter and perfect pleat air filters with duraflex medium, with this filter made their life much easier.

Why We Like This:

Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.
Regular filter replacements mitigate system malfunctions & reduce energy costs.
Delivers what they promise.

Best For Important Note: Nordic Pure 16X20X4 Air Filter

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Best part: Nordic Pure 16X20X4 Air Filter costs comparatively little and it is available to ship in 24 hours. The Nordic pure 16x20x4 airfilter price is good, is used for important things and it is reasonable. The Manufacturer says: Our carbon layer filters out odors as the air moves. This product, as with all nordic pure furnace air conditioner filters, the material is electrostatically charged to attract unwanted particles.

Most importantly, the nordic pure 16x20x4 air filter is antimicrobial, provides great value and it is ideal for heavy duty.

Most buyers quickly discovered that the filters are listed as 16" x 20" x 4", the actual size varies by brand. Moreover, a few strongly agree that the filter is good for 2 filters, but not very good if the filter only does half the job. In addition, a few also found that this filter is 15-1/2" x 19-1/2" x 3-5/8.

Few customers bought 4 less ac filter and merv pleated air filter, along with the filter.

Top Customer Quotes:

This fits by carrier furnace for quite some time.
Attracts indoor allergens, dust, pollen and other airborne contaminants.
Your favorite four-legged friend could be capable of triggering allergies and asthma attacks.
This is used for filtering media and it comes with fit snug.

Best For Prompt Delivery: Filterbuy Old Filter

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The best part: Filterbuy Old Filter costs comparatively little and it is available to ship in 24 hours. The filterbuy old filter provides great value, is best for prompt delivery, It is perfect for little dust and has a good design. The manufacturer says: This is why we work around the clock to assure that you, your family, and your community have access to clean indoor air that enables you to live and breathe freely. Moreover, the filter protects homes optimally by trapping 98% of airborne particles without impacting air flow.

The filter is recyclable and it is perfect for great quality. Most importantly, the filterbuy old filter is subject to change depending on the filter size as well as other variable factors for pet owners, allergies households with children, etc.

"If you are in the position of needing a new AC unit, have an extra wide hepa filter holder installed. " - says, one customer. In conclusion, for most customers, Filterbuy product was what they were looking for.

Why We Like This:

Industrial-grade beverage board frames with dual wire backings outperform standard cardboard designs.
This is true to size and it is made for good value.
Regular filter replacements mitigate system malfunctions & reduce energy costs.
This comes with fit fine, It is highly recommended and has a very good design.

Best For High Flow: Filters Delivered 16X20X4 Air Filter

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate filter. The filters deliver 16x20x4air filter is exactly that - it's a simple filter that hits all the right notes. The filters deliver 16x20x4 air filter fit perfectly. is great for air filters for homes and it is suitable for industrial applications. Make sure this fits by entering your model number. And, it is industrial, has filters dust and it works great. Most importantly, the filters deliver 16x20x4 air filter, comes with great filters, can check for pressure drop and it is good for good quality.

Most customers agree that the filter fits the bill perfectly and is indeed a high flow filter. Also, they strongly agree that the filter has a modern rating of 8 but no where on the filters does it say that.

Customers found that buying a perfect pleat air filters with duraflex medium and merv 8 columbia air filter, along with filter is useful.

Why We Like This:

Air filters for homes, businesses, schools, apartments, hotels, and industrial applications.
Manufactured by glasfloss. Made in the USA.
Good brand reputation.