The Aprilaire 410 DFS Replacement Filter is a MERV 11 whole-house air purifier filter designed as a compatible replacement for Aprilaire Models 2410, 3410, 4400, and Space-Gard 2140 whole-home air cleaners. It delivers the same high-efficiency particulate filtration as the OEM Aprilaire 410 filter media, capturing airborne particles as small as 1 micron while fitting perfectly into the existing filter cabinet without modifications.

With its MERV 11 rating, the Aprilaire 410 DFS Replacement Filter captures dust, pollen, pet dander, mold spores, smoke, smog, and other airborne allergens down to 1 micron in size. Its deep-pleated self-sealing design with Vapor Seal technology ensures no air bypasses the filter, making it ideal for households with allergy or asthma sufferers who need consistent indoor air quality improvement.

The Aprilaire 410 DFS Replacement Filter should be replaced approximately once per year under normal household conditions. Homes with pets, smokers, high dust levels, or located in areas with poor outdoor air quality may need replacement every 6 to 9 months. Regular annual replacement ensures your Aprilaire 2410, 3410, 4400, or Space-Gard 2140 continues to operate at peak efficiency without restricting airflow to your HVAC system.

The Aprilaire 410 DFS is a high-quality Discount Filter Store compatible replacement — not a genuine OEM Aprilaire product. It is engineered to match the exact dimensions (16 x 28 x 6 inches), MERV 11 efficiency rating, and performance specifications of the original Aprilaire 410, offering the same filtration quality at a more affordable price point. It installs identically to the OEM version with no adapters required.

Installation is straightforward: open the access door on your Aprilaire 2410, 3410, 4400, or Space-Gard 2140 air cleaner, slide out the old filter, and insert the new Aprilaire 410 DFS filter with the airflow arrows pointing toward the blower/furnace. Secure the cabinet door, then reset the filter change indicator if your unit has one. No tools are required, and the process typically takes under 5 minutes.