FIT FOR：Our 401 replacement air filter for AprilAire compatible with AprilAire 2400, Space-Gard 2400 Whole-House Air Purifier.Please confirm your machine model before purchasing!
MERV 10 AIR FILTER：The 401 furnace filter effectively reduces airborne particles such as dust, lint, and pet dander that pass through the MERV 10 filter, providing you with clean, fresh air.
FILTER SIZE: The nominal air filter size is 16 x 25 x 6 inches.(Nominal size is an industry standard filter sizing system to help you easily identify the correct replacement filter and is not an actual size!)
REPLACEMENT TIPS: To effectively protect your home and HVAC system, we recommend replacing your filter every 6-12 months for optimal performance.
COST-EFFECTIVE GOODS：The package contains 3 x 401 replacement filters for Aprilaire, which is cost-effective and saves you money and the hassle of duplicate shopping.
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