Use 2 filters at a time of this package of 12 disposable furnace filters in the Envirosept Model EAF-1425 (not included. Each replacement air filter pad is are 12 inches by 22 inches. Note the actual size of the Envirosept electronic furnace panel 1425 is not 14 x 24: it is 13.5 x 24.5 x 1 . The replacement disposable furnace filters are smaller, 12 x 22 inches. Replace furnace air filter pads monthly or more often if your home or business requires it.
Note: Measure the panel insert including the black plastic piece to get
accurate dimensions of your Envirosept insert. Replacement furnace
filter pads cover only the inside mesh part of the furnace air
cleaner panel. Replacement furnace filters are made from a custom polywool blend of proprietary fibers without latex or adhesives. We suggest a label on your furnace to remind you of the size.
To Replace Furnace Filters: Unplug the unit. Remove furnace filter panel from the slot. Open the two retaining clips. Remove both filters. If desired, move the less dirty filter to where the dirtier filter was. Add second filter. Push the clips closed, slide panel into slot and plug in.