16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Aeromixer Synthetic Pro Edition If the infestation being treated

If the infestation being treated is severe

Howling Good Stuff

transplant through flowering and fruiting

Extruded aluminum enclosure

powdery mildew and more

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 1 Pack Aeromixer Synthetic Pro Edition If the infestation being treatedImportant 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,