Filterbuy 20x20x1 Air Filter MERV 13 Optimal Defense (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 because we 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 solve the problem of giving customers the ability to simply purchase the exact filter size they need from the comfort of their homes. Plus, 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. We understand the importance of maintaining a healthy lifestyle, as breathing dirty air can put you at risk of developing asthma, allergies, and other respiratory ailments. We generally recommend replacing your filter every 90 days to keep your system running efficiently and air clean, but this may vary based on filter size and variable factors such as pet ownership, allergy status, and the presence of children in the home.

Our selection includes a variety of MERV ratings, ranging from MERV 8 (standard protection, 90% airborne particles) to MERV 13 (optimal protection, 98% airborne particles), as well as an odor eliminator option (MERV 8 with activated carbon). These 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.

At Filterbuy, we are committed to providing better air for all. We believe that everyone deserves to breathe clean, fresh air, and we work tirelessly to ensure that you, your family, and your community have access to it. Our new, green frames symbolize the peace of mind that comes from knowing your home or business is being properly cared for.

Our products are 100% American made, with a robust manufacturing 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 changing your air filters regularly.

Since our inception in 1958, we have remained true to our values, keeping our commitment to community investment and personal aid at every possible opportunity. As we continue to expand to new neighborhoods across the country, we are proud to be a family-owned and operated company that is dedicated to providing clean, healthy air for all.

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