Nominal Size 20x20 (4" & 5" Depths)
We have options in this size. Choose the one that matches yours.
These air filters are specific to ACTUAL SIZE. Measure before ordering
Honeywell/Lennox Replacement
ACTUAL SIZE
19 5/8 X 19 7/8 X 4 3/8
(19.63 X 19.88 X 4.38)
