Filterbuy 20x25x4 MERV 11 Allergen Defense Air Filters (2-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 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. Our pleated, electrostatic design captures more particles, and our reinforced beverage board frame can withstand extreme temperatures.

We solve the problem of allowing customers 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. We are passionate about championing indoor air quality and believe that everyone deserves to breathe clean air.

Our filters are available in various MERV (Minimum Efficiency Reporting Value) ratings, which measure the ability of filters to trap particles on a scale of 1-20. MERV 8 filters are perfect for almost any home or business that wants great indoor air quality at a reasonable rate. MERV 11 filters are ideal for homes or businesses accounting for factors like pets, smokers, and allergy sufferers. MERV 13 filters are perfect for larger homes or businesses, and those who want the best possible filtration experience.

We also offer MERV 8 filters with activated carbon, which are perfect for homes or businesses that want to inhibit unpleasant smells while maintaining reliable MERV 8 quality.

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 maintain clean air.

Filterbuy is a small, family-owned and operated company that has evolved since its inception in 1958. We are proud to manufacture our filters in the USA, with a robust network that allows us to swiftly fulfill diverse, custom orders directly to the doors of households and businesses across the country.

We believe in the importance of community investment and personal aid, and we strive to stay true to these values as our team continues to expand to new neighborhoods across the country.

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