16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 2 Pack misc beds and most other growing

beds and most other growing techniques

SupremeAir Australian Carbon Filter 6'' x 23''

soil temperature and soil fertility

It is the perfect size for small growing spaces

OilyCann™ is a natural calcium

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 2 Pack misc beds and most other growingImportant 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,