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21x23x0.5 – Merv 11

21x23x0.5 – Merv 11
AC Furnace Air Filter
$24.57
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Product Description

Filter Size: 21x23x0.5A

Actual Size: 21x23x0.5

Actual Size Fraction : 21x23x0.5

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21x23x0.5 MERV 11 Pleated Air Filters

Welcome to Custom Filters Direct, your trusted source for superior air quality solutions. Our 21x23x0.5 MERV 11 Pleated Air Filters are engineered to provide you with cleaner, healthier air. Explore the convenience of purchasing these high-quality filters online.

Key Features:

  • Optimal Size for Versatile Use: The 21x23x0.5 dimensions make these filters a perfect fit for a range of HVAC systems, catering to both residential and commercial applications.
  • MERV 11 Efficiency: These filters boast a MERV 11 rating, indicating a high level of efficiency in capturing airborne particles. Enjoy enhanced filtration, reducing dust, pollen, mold, and other contaminants for improved indoor air quality.
  • Pleated Design for Increased Surface Area: The pleated design maximizes the filter’s surface area, allowing for more effective particle capture. This feature ensures that your air is thoroughly filtered, promoting a healthier living or working environment.
  • Long-Lasting Durability: Crafted with durability in mind, these filters feature a robust construction that withstands regular use. You can rely on their performance over an extended period, providing consistent air quality benefits.
  • Improved Indoor Air Quality: Experience a noticeable difference in indoor air quality as these filters efficiently capture a variety of particles. Breathe in cleaner, fresher air free from common allergens and contaminants.
  • Easy Installation: No need for professional assistance. These filters are user-friendly and can be easily installed without special tools. Enjoy a hassle-free experience when replacing your old filters, ensuring your HVAC system runs smoothly.


Ordering your 21x23x0.5 MERV 11 Pleated Air Filters is just a few clicks away. Visit our website, choose the desired quantity, and complete a secure online transaction. Your filters will be shipped directly to your doorstep, making the entire process convenient and efficient.

Invest in the quality of your indoor air with confidence – choose Custom Filters Direct for your 21x23x0.5 MERV 11 Pleated Air Filters. Breathe cleaner, fresher air today!