20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack Environmental Controllers High 90% lumen maintenance at

High 90% lumen maintenance at 8

Input Current @120V 1

and offers a convenient base for adding a trellis kit or cold frame above

Grapes (all)

yet it’s so easy to use that even novice gardeners can achieve growing success

20x25x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack Environmental Controllers High 90% lumen maintenance atImportant 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. If you are replacing a 4 3 8 depth 20x25x4 filter