16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 1 Pack pumps-and-irrigation-supplies although you may not see

although you may not see them

or UVSpec to match your exact crop and growth-stage requirements

* All Vortex PROfilter products come with a PREfilter included

6HP Switchbox

Setup ballast type : 1000W/945W/750W/630W/600W/500W/315W/Not Sure

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 14 Air Filters 1 Pack pumps-and-irrigation-supplies although you may not seeImportant 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,