21.5 x 23.5 air filter

FilterBuy filters are designed to last up to days, 3 times longer than fiberglass filters. If you have pets, kids, or allergy sufferers in your home or business, replace your filters more often to maintain superior indoor air quality and keep your energy costs low.

Available to Southeast Florida residents only. Watch the video to learn more about our new Premium Dryer Vent Cleaning service. If you have ordered from us previously or created an account, you can also reset your password. Don't have an account? Sign up. At least 8 characters.

21.5 x 23.5 air filter

Item Model Number: FK Item Model Number:FK In comparison to fiberglass filters, All Filter King air filters are made in the US. Filters frames are made out of heat resistant paperboard with horizontal grid supports. 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. To increase durability, the media is supported with a corrosion resistant steel wire. Our filters can typically be used for 3 to 5 months before requiring to be changed. Naturally, a variety of things influence filter lifespan. Your air filter becomes clogged over time by trapped particles, preventing airflow. The efficiency of the HVAC filter declines.

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Item Model Number: FK Item Model Number:FK In comparison to fiberglass filters, All Filter King air filters are made in the US. Filters frames are made out of heat resistant paperboard with horizontal grid supports. 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.

21.5 x 23.5 air filter

FilterBuy filters are designed to last up to days, 3 times longer than fiberglass filters. If you have pets, kids, or allergy sufferers in your home or business, replace your filters more often to maintain superior indoor air quality and keep your energy costs low. Synthetic media provides significantly higher particulate efficiency than standard cotton media. Available to Southeast Florida residents only. Watch the video to learn more about our new Premium Dryer Vent Cleaning service. If you have ordered from us previously or created an account, you can also reset your password. Don't have an account?

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C Christiane S. Was ablrto get size needed without stress. Good proudct. How Often to Change Your All Filter King air filters are made in the US. Sign up. Haven't used these yet, but past filters have worked very well. Thnx sp. Log In. A Alex N. That's ok, and I usually order 6 or more, so I always have 1 available before i order again. Review by Anonymous User. B Bianca P.

Available to Southeast Florida residents only.

Filterbuy has what I need. If not I will be calling customer service and returning. Perfect service delivered fast and. J Jennifer C. They are not a common size and I had to surf thru their inventory before I found them maybe they are closer to metric? G Gary S. R Richard S. As a first time buyer, I was impressed with the construction of the filters and the responsive customer service. Company name Optional. O Olavo W. R Richard K. Actual Size: