20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 13 Air Filters 2 Pack complete-systems Achieve better yield

Achieve better yield

Active Aqua tubing is designed to be snug-fit

paint spray

Grow1 Heavy Duty Greenhouse Hoop House 10'x10'x6

fungicides and odor neutralizers in medium to large-sized locations

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 13 Air Filters 2 Pack complete-systems Achieve better yieldImportant 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,