Product Overview
Intertherm / Nordyne Furnace Filter Medium 669363
Original Factory replacement
Measures 19.5" x 21.5"
*please note door size is larger than filter size.
Made of blue hogs hair.
Washable and reusable. Recommended replacement after 1 year of use
ALU: F-1030-6
Example of furnace door with filter installed on an E3 electric furnace with coil box.:
Also used on RG, M3, and M7 furnace models
NOTE: Magic and Intertherm / Nordyne suggest, for optimum performance, to wash or replace your furnace filters every 3 months.
