20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 8 Pleated Plus Carbon 4 Pack harvest-solutions 100 square meters)

100 square meters)

Nordic Pure 20x25x5 Air Bear Replacement MERV 10 air filters measure an actual depth of 4 7/8"

EC or TDS values directly in your reservoir

which may cause damage (especially with continued use) to flower bracts and plant tissue

Made with Fuller's Earth (a clay material) and 20% Castor Oil

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 8 Pleated Plus Carbon 4 Pack harvest-solutions 100 square meters)Important 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,