Air Filter MERV 11 Allergen Defense (2-Pack) - 20x25x4 Size

Filterbuy is proud to offer a one-stop shop for air conditioner, furnace, or HVAC system filter replacements. We offer hundreds of custom sizes in a variety of filtration ratings to provide you with the perfect fit, ensuring access to clean indoor air. Our products feature premium pleated, electrostatic designs and durable frames to capture more particles and withstand extreme temperatures. Our robust supply chain enables us to deliver custom sizes quickly at no extra cost.

We love being able to provide a service that helps keep our community healthy. Our offerings include standard, superior, and optimal protection air filters, as well as odor eliminators. These options are available in various MERV ratings, ensuring there's something suitable for nearly any home or business.

The nominal size is a shorthand number rounded to the nearest whole or half inch, whereas the actual size is an exact measurement. Round measurements up to the nearest inch to find a corresponding nominal size. Changing your air filter regularly is essential for maintaining a healthy lifestyle and a properly functioning system. We generally recommend replacing your filter every 90 days, but this is subject to change based on specific factors. Most of our filters are universally compatible and will work with any system, as long as you choose the proper size.

We are committed to providing a diverse, custom orders network across the country at premium rates. Opting into a subscription service simplifies the replacement process, ensuring that your filters arrive on time as requested. Our team has been serving customers for nearly 70 years, and we continue to expand our reach across the country while staying true to our values.

Our 20x25x4 replacement air filters are made in the USA with industrial-grade beverage board frames and synthetic media to trap 95% of airborne particles. They are electrostatically charged, capturing more harmful particles and lasting three times longer than fiberglass models. If you receive items with a different label, frame, or media, please note that any such alteration is purely cosmetic and your filter will still function as described.

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