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18x36x1 – Merv 11

18x36x1 – Merv 11
AC Furnace Air Filter
$20.23
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Product Description

Filter Size: 18x36x1

Actual Size: 17.5×35.5×1

Actual Size Fraction : 17-1/2×35-1/2×1

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18x36x1 MERV 11 Pleated Air Filters

Upgrade your indoor air quality effortlessly with our premium 18x36x1 MERV 11 Pleated Air Filters, available for seamless online purchase exclusively from Custom Filters Direct. Immerse yourself in superior air filtration designed for both residential and commercial use. Explore the key features that make our MERV 11 filters the ultimate choice for your HVAC system:

Key Features:

  • Advanced Filtration Technology: Our 18x36x1 MERV 11 air filters are engineered with superior synthetic media, offering comparable performance to MPR 1000/1200 and FPR 7 ratings. This advanced technology ensures superior protection by trapping 95% of airborne particles, including dust, pollen, pet dander, mold, smog, and more. Experience cleaner and fresher air without compromising optimal airflow.
  • Versatile Replacement: Tailored for various HVAC systems, these filters serve as ideal replacements for your furnace, air conditioner, heat pump, or HVAC system. The 18x36x1 size guarantees compatibility, making them suitable for both residential and commercial spaces.
  • Custom Fit: Precision matters and our filters boast an actual size of 17.5×35.5×1 inches, ensuring a perfect fit for 18x36x1-inch HVAC systems. This custom fit maximizes filtration efficiency, preventing contaminants from bypassing the filter and optimizing overall system performance.
  • High-Quality Construction: Crafted with durability in mind, our filters feature electrostatically charged pleated filter media, reinforced wire backing for structural integrity, and a durable frame. This construction resists the effects of heat and humidity, ensuring long-lasting performance even in challenging conditions.
  • Extended Lifespan: Change filters every three months with confidence. Our MERV 11 Pleated Air Filters are built to last, offering a 300% longer lifespan compared to traditional fiberglass models. Enjoy consistent protection and air quality without the hassle of frequent replacements.
  • Made in the USA: Support local manufacturing with our 100% American-made filters. Designed and manufactured in the United States, these filters adhere to stringent quality standards and are crafted with recyclable materials, showcasing our commitment to environmental sustainability.


Upgrade your air filtration system effortlessly with our 18x36x1 MERV 11 Pleated Air Filters from Custom Filters Direct. Experience the convenience of online shopping and invest in cleaner, fresher air for your home or business. Order today and enjoy the transformative power of superior air filtration delivered straight to your doorstep.