From the Filter King brand, our mission is to keep your air fresh and clean, whether it's dust, pollen, or smoke. Our filters work wonders everywhere, from homes to offices and hospitals, offering over 800 air filter sizes ready to go. We specialize in crafting top-quality filters that make a difference, enabling you to find the ideal filter for your place and breathe the best air possible.

Our filters serve as your defense against common allergens, while also saving you money. A simple filter change not only prevents costly repairs but also reduces your monthly energy costs. All of our filters are made right here in the USA, featuring a pleated, electrostatic design that captures a multitude of particles. Moreover, our robust reinforced beverage board frame ensures durability, even in extreme temperatures.

We opted for the lion as our symbol because, much like this majestic king of the land, we aim to deliver quality fit for royalty. Our MERV 8 rated 4-pack Air Conditioner Filters, size 6" x 20" x 1" (with an actual size of 6" x 20" x .75"), are fully manufactured in the United States using the highest quality materials and construction (EPA Establishment Number: 103501-FL-1).

These filters can last up to 90 days before needing replacement, and we recommend changing your home air filter every 30 - 90 days for 1-inch filters to help maintain the longevity of the intended application like A/C and heaters. The pleated design captures more particles and extends the lifetime of the filter, with Merv Filters trapping airborne particles without impacting air flow. You'll feel the difference in just 48 hours.

Installation is fast and easy – simply open, slide, and close! This is a simple yet effective replacement air filter for your home, ensuring the air you breathe is the best it can be.

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