Filterbuy 20x24x1 MERV 11 Allergen Defense Air Filters (4-Pack)

At Filterbuy, we pride ourselves on being a one-stop shop for all your air conditioner, furnace, or HVAC system filter replacements. We offer hundreds of custom sizes in a variety of filtration ratings to ensure you can find the perfect fit, regardless of your specific needs. This helps us achieve our goal of providing you, your family, and your community access to clean indoor air that enables you to live and breathe freely.

Our products offer premium features that provide an enhanced filtration experience. This includes a pleated, electrostatic design that captures more particles and a reinforced beverage board frame capable of withstanding extreme temperatures. We give customers the ability to simply purchase the exact filter size they need from the comfort of their homes, and our robust supply chain ensures we can deliver these custom sizes quickly at no extra cost.

We love being able to provide a service that helps keep our community healthy. Our filters are available in various sizes, including 20x20x1, 16x25x1, 20x25x1, and 20x25x5 for Honeywell systems.

Understanding filter measurements is important. The nominal size is a rounded number (e.g., 16 x 20 x 1), while the actual size is the filter's precise dimensions (e.g., 15.50 x 19.50 x 0.75). To find the right size, measure your current filter and round up to the nearest inch.

Replacing your air filter is crucial for maintaining a healthy lifestyle. Breathing dirty air can lead to asthma, allergies, and other respiratory issues. We generally recommend replacing your filter every 90 days, but this may vary based on factors like pet ownership, allergies, and the number of occupants in your home.

Our filters are universally compatible and work with any furnace, air conditioner, heat pump, or HVAC system, as long as you choose the proper size. The number of filters you need depends on your specific situation, and our selection includes packages ranging from 1 to 12 filters.

Changing your air filter is a simple process. After finding the right size, turn off the power, remove the cover from your intake vent, and insert the new filter in the direction of airflow. Then, replace the cover and turn the power back on.

Filterbuy is committed to championing indoor air quality. We believe everyone deserves to breathe clean air, free of allergens and pollutants. That's why we offer a variety of expert services and hundreds of custom air filter sizes that are compatible with a wide range of systems.

Our new, green frames are constructed with the same high-quality materials, symbolizing the peace of mind that comes from knowing your home or business is being properly cared for. We are proud to manufacture our filters in the USA, with a robust, homegrown network that allows us to swiftly fulfill diverse, custom orders.

To simplify the process, we offer a subscription service that ensures your filters arrive on time, and you even get a discount on every delivery when you enroll. As our team continues to expand, we remain true to our values by keeping our commitment to community investment and personal aid.

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