Filterbuy 20x25x4 MERV 11 Allergen Defense Air Filters (6-Pack)

At Filterbuy, we take great 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 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, enabling you to live and breathe freely.

What makes our products unique? We offer premium features that provide an enhanced filtration experience via 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.

Why do we love what we do? We love being able to provide a service that helps keep our community healthy. We understand that breathing dirty air can put you at risk of developing asthma, allergies, and other respiratory ailments. That's why we recommend replacing your filter every 90 days to keep your system running efficiently and your air clean.

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 offer a variety of package quantities, ranging from 1 to 12 filters, to suit your specific needs.

At Filterbuy, we care about the air you breathe because we consider it the foundation for maintaining a healthy lifestyle. 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, ensuring we can always provide value with a quality product that empowers you to protect your home or business.

Our new, green frames are constructed with the same high-quality materials you have grown accustomed to. We made the decision to switch to this greener design to help symbolize the peace of mind that comes from knowing your home or business is being properly cared for.

From our first air filter produced in 2013, we have proudly built our business in the USA, now manufacturing in Alabama, California, Florida, Illinois, North Carolina, Pennsylvania, Texas, and Utah. This robust, homegrown network gives us the unique ability to swiftly fulfill diverse, custom orders directly to the doors of households and businesses across the country at premium rates.

We understand the nature of air filters requires them to be replaced regularly, but opting into a subscription service can help simplify that process. All you need to do is find the right product and choose the delivery interval, and we'll make sure your filters arrive on time as requested.

Our small, family-owned and operated company has evolved since its inception in 1958 to the filtration business that you know and love today, with thousands of employees serving millions of customers. As our team continues to expand to new neighborhoods across the country, we make sure to stay true to our values by keeping our commitment to community investment and personal aid at every possible opportunity.

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