Replacement filter media for your spacegard or Aprilaire 2400 high efficiency air cleaner. This filter media needs changed twice per year if you have heating and air conditioning and once per year if you have just heating. Should you have special conditions like lots of shedding pets, are located near a farm or other dusty environment or are a commercial application you will need to replace the filter media more often.
#401 Replacement Media for Aprilaire Space Guard 2400
High-Efficiency Merv 10 Rating
Fits theAprilaire & SpaceGard 2400 Air Purifiers
Filter Dimensions: 16" x 28" x 6"