20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 2 Pack growing-media Digital screen displays current room

Digital screen displays current room temperature

Pseudomonas

Perfect for vegetables

Pyur Scientific Propelyne Glycol USP Kosher 1 Gallon

Lightech T5 4ft 54W features a High Output 6500K T5 Lamp

20x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 2 Pack growing-media Digital screen displays current roomImportant 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,