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18x18x0.5 – Merv 11

18x18x0.5 – Merv 11
AC Furnace Air Filter
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Product Description

Filter Size: 18x18x0.5A

Actual Size: 18x18x0.5

Actual Size Fraction : 18x18x0.5

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18x18x0.5 MERV 11 Pleated Air Filters

Immerse yourself in cleaner, fresher air with our premium 18x18x0.5 MERV 11 Pleated Air Filters, available for convenient online purchase exclusively from Custom Filters Direct. These filters are meticulously engineered to deliver optimal performance, making them the perfect solution for both residential and commercial applications.

Key Features:

  • Efficiency up to MERV 11: Elevate your air filtration with a MERV 11 rating, ensuring superior efficiency in capturing a high percentage of airborne particles. Enjoy improved indoor air quality with this advanced level of filtration.
  • Electrostatic Filtration: Benefit from cutting-edge electrostatic filtration technology, enhancing the filter’s capability to trap particles effectively. This technology contributes to a more thorough air purification process.
  • 30 Times More Efficient Than Regular Fiberglass Filters: Experience a significant upgrade in air filtration efficiency with filters that are 30 times more effective than regular fiberglass filters. Say goodbye to common airborne contaminants and embrace cleaner, healthier air.
  • Available in Custom Sizes: Tailor your air filtration experience by choosing from a range of custom sizes. Ensure a perfect fit for your HVAC system, meeting the specific requirements of your space and enhancing the efficiency of your filtration system.
  • Made in the USA: Trust in the quality of American craftsmanship with filters proudly manufactured in the United States. Support domestic production and enjoy the reliability of a homegrown solution that meets the highest standards.


  • 100% High-Performance Tribo-Electric Synthetic Media: Experience advanced filtration materials with 100% high-performance Tribo-Electric synthetic media. This ensures efficient particle capture, contributing to enhanced air quality and a healthier indoor environment.
  • Cotton/Polymer Blend Micro-Fibers: The filter construction features a blend of cotton and polymer micro-fibers, striking a balance between effective filtration and optimal airflow. This blend ensures comprehensive particle capture without hindering the performance of your HVAC system.
  • Low Resistance to Airflow: Optimize HVAC system performance with filters that offer low resistance to airflow. This ensures that the filter enhances air quality without compromising the efficiency of your system, contributing to an optimal and balanced airflow.
  • Does Not Support Microbial Growth: Ensure a healthier indoor environment with a filter construction that does not support microbial growth. This feature maintains cleanliness, preventing the development of harmful microorganisms and contributing to a hygienic air filtration process.
  • Heavy-Duty Construction Frame: Equipped with a heavy-duty construction frame, these filters offer structural integrity and resilience. This ensures consistent performance over time, even in demanding environments, providing durability you can rely on.

Upgrade your air filtration system with confidence. Purchase the 18x18x0.5 MERV 11 Pleated Air Filters from Custom Filters Direct today and immerse yourself in the enduring benefits of superior filtration. Breathe easy, knowing you’ve chosen a reliable solution tailored to enhance the air quality in your specific environment.