16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack beneficial microbes Program Device Stations Max 9pcs

Program Device Stations Max 9pcs per set

This makes it ideal for drenches in nurseries and greenhouses

SUPPORTING EXTERNAL CONTROLLER IN MAINSTREAM MARKET WITH “0-10V”

recirculating hydroponic grow system

• Supplemented with natural ingredients

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack beneficial microbes Program Device Stations Max 9pcsImportant 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,