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AC Furnace Air Filter
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Product Description

Filter Size: 19×21.5x1A

Actual Size: 19×21.5×1

Actual Size Fraction : 19×21-1/2×1

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19×21.5×1 Air Filters

Experience a breath of fresh air in your home or business with our meticulously crafted 19×21.5×1 Air Filters, available exclusively through Custom Filters Direct’s convenient online platform. These filters are not just a necessity; they’re a commitment to providing cleaner, healthier air for your space.

Key Features:

  • Actual Size Precision: Measuring precisely at 19×21.5×1″, our filters ensure a perfect fit for your HVAC system. This accuracy guarantees seamless integration, allowing you to enjoy the benefits of improved air quality effortlessly.
  • Versatile MERV Rating Options: Tailor your filtration to specific needs with our diverse MERV rating options – choose from 8, 11, or 13. Our filters adapt to your unique requirements, ensuring effective purification and enhanced air quality.
  • Proudly Made in the USA: Trust in the quality of American craftsmanship. Our 19×21.5×1 Air Filters are proudly made in the USA, reflecting our commitment to excellence and ensuring reliable performance.
  • Extended Filter Lifespan: Designed to last up to 90 days, our filters surpass fiberglass alternatives by lasting three times longer. Consider replacing your filters more frequently, especially if you have pets, kids, or allergy sufferers, to maintain superior indoor air quality and keep energy costs in check.
  • Exceptional Efficiency: Enjoy air filtration that is at least 20 times more efficient than fiberglass filters. Our 19×21.5×1 pleated air filters utilize synthetic media, providing significantly higher particulate efficiency compared to standard cotton media. This means you can breathe easier knowing that a higher percentage of contaminants are being captured.
  • Robust Construction: The filter frames are constructed with durable beverage boards, ensuring strength and integrity even in humid conditions and temperatures up to 200° F. Choose filters that not only provide exceptional filtration but also withstand environmental challenges, providing peace of mind and long-term reliability.


Upgrade your air quality to a whole new level with our 19×21.5×1 Air Filters. Whether you’re prioritizing allergen reduction, energy efficiency, or both, our filters deliver on these fronts and more.

Order your 19×21.5×1 Air Filters from Custom Filters Direct today. Elevate your indoor air quality with filters that go beyond the ordinary, offering longevity, efficiency, and peace of mind. Breathe easier with Custom Filters Direct – where clean air is not just a promise but our commitment to you and your well-being.