20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 10 Air Filters 2 Pack meters-&-solutions The FUEL ST8 represents the

The FUEL ST8 represents the latest in professional lighting control

Does Sluggo work after rain

mildews and Botrytis

- Top Quality German Aluminum interior for excellent output and uniformity

Dilution Range: 1:100 Fixed (1%)

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 10 Air Filters 2 Pack meters-&-solutions The FUEL ST8 represents theImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 7 8 and 5 1 4 inch depth filters,