20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack fans-ventilation-ducting 3 by slotted screwdriver set:

3 by slotted screwdriver set: 4/5/6mm

Bypass pruner design holds stems in place while the curved blade slices through for a clean cut

100-480V Driver Options

Easy to mix

the sturdy sealing arm is mounted on a thick

20x25x4 (3 5/8) Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack fans-ventilation-ducting 3 by slotted screwdriver set: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. If you are replacing a 4 3 8 depth 20x25x4 filter