20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 4 Pack Growing Media 3’ for SPYDR 2x/2p/2i

3’ for SPYDR 2x/2p/2i

This creates a barrier that insects don’t like

Use 1 tsp (or scoop) per 2 gallons of water

A CONSUMABLE FORM OF NITROGEN FOR PLANTS

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 4 Pack Growing Media 3’ for SPYDR 2x/2p/2iImportant 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,