4 Inch
Aprilaire 413 OEM Replacement 16x27x4 MERV 13 Filter
$41.32
Aprilaire 310 OEM Replacement 20x20x4 MERV 13 Filter
$35.62
$12.47
Aprilaire 410 Replacement 16x25x4 MERV 11 Filter
Aprilaire 213 OEM Replacement 20x26x4 MERV 13 Filter
Aprilaire 210 Replacement 20x25x4 MERV 11 Filter
Generalaire / Reservepro 4572 MERV 13 16x25x4 Furnace Filter
$96.18
Generalaire / Reservepro GA104 MERV 8 16x28x4 Furnace Filter
$21.37
Honeywell FR8000A2520 - Pleated 25x20x4 MERV 15 Air Filter
$145.33
$50.87
Honeywell FR8000A2020 - Pleated 20x20x4 MERV 15 Air Filter
Honeywell FC200E1029 - Pleated 16x25x4 MERV 13 Air Filter
$34.20
Honeywell FC200E1011 - Pleated 20x20x4 MERV 13 Air Filter
Honeywell FR8000A1620 - Pleated 16x20x4 MERV 15 Air Filter
