20x25x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack grow media this formulation is ideal for

this formulation is ideal for growers looking for a general purpose medium which creates a well-balanced growing environment

Universal cut to fit adapter

This organic emulsifiable concentrate is made with high quality

Each ¼” EZ Hanger Rope Ratchet holds up to 150 lbs and each ⅛” EZ Hanger Rope Ratchet holds up to 75 lbs

Outside Diameter: 15"

20x25x4 (3 5/8) Pleated MERV 12 Air Filters 1 Pack grow media this formulation is ideal forImportant 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