16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 2 Pack additives DANGER: CAN CAUSE BURNS IF

DANGER: CAN CAUSE BURNS IF IN DIRECT CONTACT WITH SKIN

No more worrying about where to put the unit — I just run the hose wherever I need it

Russet Mites (Eriophyoidea superfamily)

eliminating the need for constant surveillance on your grow’s most important metrics

Can be used on any plant

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 2 Pack additives DANGER: CAN CAUSE BURNS IFImportant 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,