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AC Furnace Air Filter
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Product Description

Filter Size: 20x23x4A

Actual Size: 20x23x4

Actual Size Fraction : 20x23x4

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20x23x4A Air Filters

Welcome cleaner and fresher air into your living or working space with our advanced 20x23x4A Air Filters, exclusively available at Custom Filters Direct. Crafted for optimal performance, these filters are your key to creating a healthier and more comfortable environment.

Key Features:

  • Actual Size: 20x23x4: Ensure a perfect fit for your HVAC system with the actual size of 20x23x4. This guarantees optimal filtration, contributing significantly to improved indoor air quality.
  • 4-Inch Filter: The substantial 4-inch profile enhances filtration capacity, capturing a wide range of airborne particles for a healthier living or working space.
  • Available in MERV Rating: 8, 11, 13: Tailor the filtration level to your specific needs with MERV ratings of 8, 11, or 13. Choose the ideal rating for your environment and enjoy superior air purification.
  • Made in the USA: Trust in the quality of our filters, proudly manufactured in the United States. This ensures adherence to high standards and quality control for reliable performance.


Extended Lifespan:

Designed to last up to 90 days, our filters outperform fiberglass filters, lasting three times longer. For homes with pets, kids, or allergy sufferers, more frequent replacements are recommended to maintain superior indoor air quality and keep energy costs low.

High Efficiency:

Pleated air filters measuring 20x23x4 have a minimum efficiency of 20 times higher than those made of fiberglass. Despite humidity and temperatures as high as 200°F, the beverage board filter frames maintain their strength. As compared to conventional cotton media, the synthetic media has a far better particle efficiency, guaranteeing complete filtering.

Elevate your indoor air quality effortlessly with the 20x23x4A Air Filters from Custom Filters Direct. Order online today and take the first step towards breathing cleaner and fresher air. Experience the transformative difference that advanced air filtration can make in your environment!