Description
Product Overview
The AprilAire 201 is a genuine replacement air filter designed specifically for AprilAire air purification systems. With a MERV 10 rating, this filter effectively captures airborne particles including dust, pollen, mold spores, and other contaminants measuring 3-10 microns. Manufactured by Research Products Corporation in the USA, this filter features nominal dimensions of 20 x 25 x 6 inches and provides up to one year of filtration performance. The filter’s construction utilizes advanced media that balances airflow resistance with filtration efficiency, ensuring your HVAC system operates optimally while maintaining clean indoor air.

Usage
This replacement filter is ideal for homeowners seeking to maintain clean indoor air quality in residential settings. It’s particularly beneficial for households with allergy sufferers, pet owners, or those living in areas with high pollen counts or urban pollution. The filter works seamlessly with AprilAire whole-house air purification systems, providing continuous air cleaning throughout your living space. Recommended for annual replacement, this filter helps maintain HVAC efficiency and indoor air quality in single-family homes, apartments, and other residential properties.
Why Choose Us
AprilAire has been the leader in indoor air quality solutions for decades, with all filters designed and manufactured in the United States using quality materials and precise engineering. Unlike generic replacement filters, the genuine AprilAire 201 is specifically engineered to match the airflow requirements and filtration needs of AprilAire systems. The company’s commitment to research and development ensures each filter delivers consistent performance and reliability. Customers can trust in the brand’s reputation for creating healthier home environments through effective air filtration technology.
Key Features
- MERV 10 rating captures dust, pollen, mold spores, and other airborne particles
- Manufactured in USA using quality materials for reliable performance
- Nominal size 20x25x6 inches fits standard AprilAire air purification systems
- Up to one year filter life reduces maintenance frequency and costs
- Genuine AprilAire replacement ensures optimal system compatibility
FAQ
How often should I replace my AprilAire 201 filter?
For optimal performance, replace your AprilAire 201 air filter annually. However, in homes with high levels of dust, pets, or allergy sufferers, you may need to replace it more frequently depending on visible accumulation and air quality needs.
What is the actual size of the AprilAire 201 filter?
The nominal size is 20x25x6 inches, which is the industry standard for identifying replacement filters. The actual dimensions may vary slightly to ensure proper fit within your specific AprilAire system housing.
Can I use this filter with non-Aprilaire systems?
This filter is specifically designed for AprilAire air purification systems. Using it with incompatible systems may result in poor performance or damage to your HVAC equipment. Always consult your system manufacturer for compatible replacement filters.
What particles does the MERV 10 rating capture?
The MERV 10 rating indicates the filter captures particles between 3-10 microns in size, including dust, pollen, mold spores, and other common household allergens and contaminants that affect indoor air quality.
Is there an upgrade available from the 201 filter?
Yes, AprilAire offers the 1213 Upgrade Kit that replaces the original 201 filter with a high-performance 213 filter and new filter frame system, providing enhanced filtration and eliminating the need for pleat spacers.





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