16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 4 Pack spl_hf PHOTOBIO delivers consistent optimal PPFD

PHOTOBIO delivers consistent optimal PPFD levels throughout the day while saving energy

Great for processing

3 cones per pack

Note: this item is the piece of lens glass only

When placed on top

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 4 Pack spl_hf PHOTOBIO delivers consistent optimal PPFDImportant 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,