All filters are made in the USA  – Order Today


Protects all against


AC Furnace Air Filter
Rated 0.0 out of 5
0.0 out of 5 stars (based on 0 reviews)

Select Filter Quality


Product Description

Filter Size: 19.5x21x1A

Actual Size: 19.5x21x1

Actual Size Fraction : 19-1/2x21x1

Customer Reviews

Rated 0.0 out of 5
0.0 out of 5 stars (based on 0 reviews)
5 Star0%
4 Star0%
3 Star0%
2 Star0%
1 Star0%

Review this product

Share your thoughts with other customers

Top Reviews

There are no reviews yet. Be the first one to write one.

19.5x21x1 Air Filters

Revitalize your indoor air quality effortlessly with the advanced 19.5x21x1 Air Filters, available for seamless online purchase at Custom Filters Direct. These meticulously crafted filters are designed to be the cornerstone of improved air quality in your residential or commercial space, providing efficient and reliable filtration.

Key Features:

  • Optimal Size for Versatile Systems: The 19.5x21x1 air filters are ingeniously engineered to fit seamlessly into various systems, including furnaces, air conditioners, heat pumps, and HVAC systems. This universal compatibility ensures not only ease of installation but also versatility, making them a practical and effective solution for your diverse air filtration needs.
  • Advanced Filtration Efficiency: Our filters boast advanced filtration technology that goes beyond the ordinary. They efficiently capture and trap a broad spectrum of airborne particles, ranging from common dust and pollen to pesky pet dander and mold. Immerse yourself in cleaner, fresher air as these filters work tirelessly to enhance indoor air quality.
  • Durable Construction: Crafted with an unwavering commitment to quality, these air filters feature a robust and thoughtful construction. The pleated design not only enhances dust-holding capacity but also allows for optimal airflow, maintaining superior filtration efficiency. The durable frame and reinforced wire backing provide structural integrity, ensuring longevity and consistent performance over time.
  • Convenient Online Purchase: Embrace the simplicity of online shopping with Custom Filters Direct. Our user-friendly platform offers a hassle-free buying experience, allowing you to select the right filters for your needs effortlessly. Bid farewell to the inconvenience of in-store purchases as you enjoy the ease and convenience of securing your air filters online.


Upgrade your air filtration system with confidence – choose the 19.5x21x1 Air Filters from Custom Filters Direct. Breathe cleaner, fresher air, and take a proactive step toward creating a healthier and more comfortable living or working environment. Purchase online with assurance, knowing that you’re investing in top-quality filters designed to prioritize both your indoor air quality and the long-term performance of your HVAC system.