20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 4 Pack Chemicals simple to follow

simple to follow

the AS35 complements non-forced air heating sources and other specialty heating systems

It's completely free of artificial colors & fragrances

this unique formula will assist in the highest level of crop performance during their critical blooming stage

with an average increase of available light of a whopping 48%

20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 4 Pack Chemicals simple to followImportant 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,