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16x21x1A – Merv 13

16x21x1A – Merv 13
AC Furnace Air Filter
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6-11 $0.00
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Product Description

Filter Size: 16x21x1A

Actual Size: 16x21x1

Actual Size Fraction : 16x21x1

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Buy 16x21x1A Air Filters Online

When allergens such as bacteria and viruses are the main concern, unlock better air quality with Custom Filters Direct 16x21x1A air filters. These air filters proactively capture more than 90% of the airborne particles while letting cleaner air pass through.

Manufactured in the USA in our own factory, these filters are an affordable air filtration solution to fit your home or office environment. Our 16x21x1A furnace and HVAC filters come with a solid construction which makes the filters last longer and work efficiently during the peak seasons.

All these air filters require periodic replacement to ensure you can maintain a clean, healthy environment. Using dirty air filters will not just impact your health, but also put a strain on the HVAC unit. That means replacing the air filter on time, you can enjoy clean air to breathe every day while avoiding costly HVAC repairs.

Select the Right MERV Rating


MERV 8 filters are a popular choice for common households as these filters capture 85% of the common pollutants, such as dust, pollen, and mold spores. These filters are an ideal choice for most residential applications, as well as on commercial properties with less pollution around.


These air filters can capture almost all small particles including dust, pollen, mold, pet dander, virus, smog, and smoke. Ideal for both commercial and residential properties, MERV 11 filters eliminate more than 85% of the airborne particles that are 3.0-10.0 microns in size and 50% of the particles 1.0-3.0 microns in size.


If your space is susceptible to excessive pollutants or if you have occupants with allergy sensitivities, then choose MERV 13 air filters. These filters will capture more than 90% of 3.0-10.0 micron particles and 0.3-1.0 microns size particles that float in the air.

16x21x1A Air Filters Delivery

Your lifestyle affects how efficient your home or office air filters are. Let Custom Filters Direct help you create a healthier environment by offering two easy shopping options. You can either choose our subscription service to get new air filters on a regular interval, or you can buy in bulk to get huge discounts. Whatever the option you choose, you will get high-quality filters delivered to your door. Place your order now and take advantage of our fast and quick delivery service for 16x21x1A furnace and HVAC filters.