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21x22x1 – Merv 13

21x22x1 – Merv 13
AC Furnace Air Filter
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Product Description

Filter Size: 21x22x1

Actual Size: 20.5×21.5×1

Actual Size Fraction : 20-1/2×21-1/2×1

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21x22x1 MERV 13 Pleated Air Filters

Improve the quality of the air you breathe with our cutting-edge 21x22x1 MERV 13 Pleated Air Filters, available for hassle-free online purchase directly from Custom Filters Direct. Precision-crafted for optimal efficiency, these filters set a new standard in air purification, capturing even the smallest airborne particles to create a healthier and fresher living or working space.

Key Features:

  • High Filtration Efficiency: Engineered with MERV 13 filtration, these pleated air filters excel in capturing particles as small as 0.3 microns. This high level of efficiency ensures superior air purification, significantly reducing the presence of allergens, dust, pollen, mold spores, and pet dander in your indoor environment.
  • Optimal Sizing for HVAC Systems: Specifically designed as a 21x22x1 air filter replacement, these filters offer an optimal fit for a variety of HVAC systems and furnaces. The seamless installation process ensures that you experience immediate improvements in air quality without compromising the airflow essential for the efficiency of your system.
  • Extended Lifespan for Convenience: Each filter is engineered to last for an extended period, providing up to three months of consistent and reliable performance. This prolonged lifespan not only contributes to convenience but also ensures sustained air quality improvement, reducing the frequency of replacements.
  • Advanced Pleated Design: The pleated design goes beyond aesthetics; it enhances the filter’s dust-holding capacity while maximizing airflow efficiency. Experience improved air circulation without sacrificing the filtration efficiency of your HVAC system, creating a balanced and effective air purification solution.
  • Versatile Application: Suitable for both residential and commercial settings, these MERV 13 Pleated Air Filters offer versatile applications. Whether at home or in your workplace, enjoy the comprehensive benefits of elevated indoor air quality, promoting a healthier and more comfortable environment.
  • Effortless Online Purchase: Streamline the replacement process by conveniently ordering your filters online from Custom Filters Direct. Our user-friendly platform empowers you to select the right size and quantity, ensuring a smooth and hassle-free shopping experience from the comfort of your home or office.


Upgrade your air filtration system with confidence and convenience. Purchase the 21x22x1 MERV 13 Pleated Air Filters from Custom Filters Direct today and immerse yourself in the enduring benefits of cleaner, fresher indoor air. Breathe easy, knowing you’ve invested in a reliable solution tailored to enhance the air quality in your specific environment.