20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 1 Pack dis This fixture is commericial grade

This fixture is commericial grade so its design quality and durbility are second to none

safe to use on all food crops

You may not see dead slugs or snails lying about as they usually crawl somewhere secluded to die

from the dashboard

The UNI-SLAB is suitable for both top drip and flood systems

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 15 Air Filters 1 Pack dis This fixture is commericial gradeImportant 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,