20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 4 Pack pumps-&-irrigation Rated for both heated and

Rated for both heated and cooled air and perfect for outdoor AND indoor use

and fruit quality

The unit measures 9

healthy root systems for maximum stem

The compressed format is a game changer for our facility layout

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 4 Pack pumps-&-irrigation Rated for both heated andImportant 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,