WE ARE OPEN! All filters are made in the USA in our Alabama warehouse.

Fresh Air Filter Delivery

A subscription service that delivers filters to your door for cleaner air - on time, every time!

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Select Your Air Filter Dimensions

Filter Size Chart

Shop By Minimum Efficiency Reporting Value (MERV) Quality

How Our Air Filter Subscription Works

Filter Size

Choose Filter Size

Pick your correct filter size and quantity from our list of popular air filter sizes. Need a custom size? Not a problem.

Stinky Filter

Replacement Filters

Depending on your preferred frequency, your air filter will be right on your doorstep every time, on time. Replace the old with the new filter and start breathing fresh!


Set Your Delivery Schedule

Choose your preferred delivery frequency. Whether it’s 30, 60, 90 days - you decide when to receive your filters. New air filters arrive on schedule to help improve indoor air quality and extend the life of your HVAC unit.

Woman Relaxed

Sit Back and Relax

Never miss changing your air filter again. Receive a 5% discount on all future orders. Now, that’s the best way to live!

Filter King Provides The Royal Treatment In-Home Air Filter Delivery Services

Protect your family today and save your time tomorrow with our simplified home air filter subscription service. We deliver premium air filters fast and free right to your door, on time every time. Needs reminder? No problem, sign up for a completely free automated reminder service.

Why Should You
Choose Us?

With one of our air filter subscriptions, you can have premium-quality, MERV-rated air filters delivered right to your door, anywhere in the U.S., for a reasonable price. Have the right filters for your home's HVAC system, and maintain good air quality for your family and your pets.

Kion King

Unbeatable Pricing

When it comes to value for money, we’re unbeatable (no, seriously). The best part? The more you buy, the less you pay.

Filter King Pricing
Pickup Van

Free & Fast Shipping

You’re busy; we get that. Activate auto-shipment with us for filter delivery directly to your doorstep at a delivery frequency of your choosing. Oh, did we also mention you receive a 5% discount on all future orders on top of 2-5 days free shipping.


Hassle-Free: Cancel Whenever

We hate fine print as much as you do. No contracts or commitments! Pause, change, or cancel your delivery service whenever you need to.

USA Flag

Made in the USA

Not only are all our filters proudly manufactured and assembled here in the USA, but they also comply with all FTC rules and are certified by regulatory bodies such as SafeHome™.

Protect Your Loved Ones With Our Premium Quality Air Filters

With the right air filters, you can protect your loved ones from harmful airborne allergens and irritants such as:

Filter Features
Dirty-Clean Filter

Keep Your Home Clean and Allergen Free With Our AC/Furnace Filters

Clean air should never have to be something you worry about. Approximately 1 in every 7 Americans has respiratory issues such as Asthma and COPD. Maintain a healthy home environment for your loved ones today.

Don’t Take It From Us...Our Customers Say It Best

Daniel R.
Verified Buyer
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Furnace Filters

True to size. Filters the air and impurities very well. Price is better than the lesser quality you find in home depot.

Monica J.
Verified Buyer
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AC Filters

Filters work great and i love that they are American made (in Alabama).

Isabel G.
Verified Buyer
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Perfect Size!

I am so happy to have found the size! I was shoving a 20x20x1 in there because that is what the previous owners had used. Also, delivery was fast!! Thanks again... and i’ll be ordering on the regular from you!

Jerry K.
Verified Buyer
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Excellent Service

My AC return has an odd size filter. Filter King filters to fit. I just happened to see them on a Google search. I will not hesitate to use them in the future.

Maximize Your Air Quality With MERV-Rated Filters

Filter King makes various MERV-rated standard filters for all commercial and residential HVAC systems, and we can also manufacture custom-sized filters on request.


Good: MERV 8 Filter

At a minimum, MERV 8 filters can be appropriate for most residential homes. It can block up to 90% of airborne contaminants such as household dust, mold spores, and pollen. Recommended for use in basic and standard homes and businesses.


Better: MERV 11 Filter

MERV 11 filter is a mid-level filter, a step higher than MERV 8, and can remove a much higher percentage of contaminants, including pet dander and allergens. It's recommended for homes with pets and people with mild allergies, or anyone looking for further filtration.


Best: MERV 13 Filter

In addition to filtering everything that MERV 11 filters can, MERV 13 air filters can filter out smoke, smog, and viruses. MERV 13 provides the highest level of filtration and is suitable for homes with people that smoke, have severe allergies, asthma, and other respiratory issues.


Join The Family and Get $5 Off Your First Order

Customers who join us today for air filter delivery subscription service will get $5 off for their first and ongoing orders.