Filterbuy 20x20x1 MERV 11 Allergen Defense Air Filters (4-Pack)

At Filterbuy, we take pride in 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 that 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 are unique as they offer premium features that provide an enhanced filtration experience. We use a pleated, electrostatic design that captures more particles, and a reinforced beverage board frame capable of withstanding extreme temperatures.

We aim to solve the problem of giving customers the ability to simply purchase the exact filter size they need from the comfort of their homes. Our robust supply chain ensures that 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 come in various sizes, such as 20x20x1, 16x25x1, 20x25x1, and 20x25x5 Honeywell Air Filters.

The Minimum Efficiency Reporting Value (MERV) rates the ability of filters to trap particles on a scale of 1-20, with the smallest microns captured at 20. We offer MERV 8 (standard protection), MERV 11 (superior protection), and MERV 13 (optimal protection) air filters, as well as MERV 8 air filters with activated carbon for odor elimination.

Our filters are universally compatible and will work with any furnace, air conditioner, heat pump, or HVAC system, as long as you choose the proper size. We recommend replacing your filter every 90 days to keep your system running efficiently and the air clean.

At Filterbuy, we are committed to championing indoor air quality and ensuring that everyone has access to clean air. We now offer a variety of expert services and hundreds of custom air filter sizes that are compatible with a near-infinite number of systems. Our new, green frames symbolize the peace of mind that comes from knowing your home or business is being properly cared for.

We are proud to be an American-made company, with a robust, homegrown network that enables us to swiftly fulfill diverse, custom orders directly to the doors of households and businesses across the country. We also offer a subscription service to simplify the process of regularly changing your air filters.

As a small, family-owned and operated company that has evolved since its inception in 1958, we remain committed to our values of community investment and personal aid. We continue to expand to new neighborhoods across the country, always staying true to our mission of providing better air for all.

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