16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 2 Pack spl_dlw GROWERS TIP: Use Elite 91

GROWERS TIP: Use Elite 91 FLOWERS with every feeding or nutrient change out in the last 1 to 2 weeks of the vegetative phase at 0

Azos specializes in the highly-efficient conversion of the N2 form of nitrogen into plant-available NH3 ammoniacal nitrogen

Milled plant material can be caught in the included tote or an optional conveyor for fully automated workflows

It keeps flowers fresher

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 2 Pack spl_dlw GROWERS TIP: Use Elite 91Important 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,