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16.5x21x1 Air Filter Merv 8
16.5x21x1 AC Filter Merv 11
16.5x21x1 Furnace Filter Merv 13
16.5x21x1 Filter Merv 13 Titanium
16.5x21x1 Filter Merv 10 Carbon
16.5x21x1 Filter Merv 8 Carbon 16.5x21x1 Filter Merv 8 Carbon
Protects All Against
  • Pollen protection
  • Dust protection
  • Mold protection
  • Dust Mites protection
    Dust Mites
  • Bacteria protection
  • Pet Dander protection
    Pet Dander
  • Smoke protection
  • Viruses protection
  • Cooking Smoke protection
  • Odor protection
  • Smog protection

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AC Furnace Air Filter 16.5x21x1 -Inches

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Odor Eliminator

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Product Description

Item Model Number: FKFB16.5X21A
Brand: Filter King
Filter size: 16.5x21x1
Actual Size: 16.5 x 21 x .75
1-Inch Filter
MERV 8 Filter Rating
Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses
Residential / Commercial Use

Manufactured in the US

Why Buy Air Filters From Filter King?


In comparison to fiberglass filters, 16.5x21x1 pleated air filters are at least 20 times more effective. All Filter King air filters are made in the US.


Filters frames are made out of heat resistant paperboard with horizontal grid supports. Able to withstand temperatures of up to 200° F and resistant to moisture, the paperboard frames do not support microbial growth and outperforms traditional cardboard frames.


Chemical free, electrostatically charged synthetic polyester media is pleated, maximizing the surface area, to capture a high number of airborne particles as small as 0.3 microns with low air flow resistance. To increase durability, the media is supported with a corrosion resistant steel wire.

16.5x21x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 16.5x21x1 Air Filter?

Filter King AC & furnace filters aren’t the typical fiberglass filters that need to be replaced every 30 days. Our filters can typically be used for 3 to 5 months before requiring to be changed. Naturally, a variety of things influence filter lifespan.

Some of the factors that influence your filter’s life include outdoor air quality, whether pets are in the home, and how well your HVAC system is maintained.

Your air filter becomes clogged over time by trapped particles, preventing airflow. The efficiency of the HVAC filter declines. Your system must work harder to heat and cool your home. The extra strain on the HVAC system causes higher energy bills. Regular home air filter replacements can prevent expensive system repairs or replacements down the road.

You should change your filter more frequently if you notice:

  • Household dust build-up
  • The air isn’t cooling as is used to
  • There’s more dust near the air vents
  • A dirty filter surface
  • Higher energy bills
  • Burning smells near your HVAC system.

Filter King 16.5x21x1 Air Filter: About the Product

Protect your home with our very own branded 16.5x21x1 Air Filter. Find out more about how it can protect your family.

Filter King 16.5x21x1 Air Filter: Overview

Filter King’s 16.5x21x1 AC Filter is a cost-efficient replacement media filter that works to clean, cool, and condition the air in your home or business. It has a super high capacity too, making it a perfect choice for replacing the furnace filter models in 16.5x21x1 ACs or furnaces.

Regularly changing the filter in your air purifier system should never be sidelined, even when your list of to-dos is seemingly endless. That’s why our Filter King 16.5x21x1 Furnace Filter can be purchased as part of our subscription service. Always be prepared and stay on top of removing the unwanted airborne particles polluting the air you breathe.

Rest assured Filter King cares about your home’s air quality too. Our 16.5x25x1 Air Filter has been specially designed to protect you against all sorts of air contaminants, including dust, pet dander, dust mites, pollen, bacteria, smoke, and lots more. 

Our 16.5x21x1 Furnace Filter also comes in a range of MERV ratings too. Always opt for maximum protection for the best, safest air filtration.

Filter King 16.5x21x1 Air Filter: Specifications

A Durable Filter

You can rely on Filter King’s durable and long-lasting air filters. We design and manufacture all of our products that way. The 16.5x21x1 air filter has a lifespan of approximately 3 - 6 months, but please note that this will depend on your air quality. For the best, most reliable filtration, be prepared with our monthly air filter subscription that delivers your replacements on time, every time. 

A Compatible Filter

This filter is compatible with any Carrier FILXXCAR0016 Filter System.

A Versatile Filter

Rest assured the Filter King 16.5x21x1 Air Filters are suitable for both residential and commercial use. Filter King has you covered, no matter whether you’re a home-owner, business-owner, or pet-owner. 

Why Choose Filter King?

1. We Remember for You

You can sit back, relax, and never forget to change your filter. Order with our monthly subscription service today.

2. We Offer Unbeatable Prices

We reward your loyalty with unbeatable prices. The more you buy, the less you pay. 

3. Made in the U.S.A.

All of our filters are proudly manufactured and assembled in the U.S.A. Share our pride by ordering with us.