20x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 6 Pack New-releases Unlike other brands

Unlike other brands

Significant increases in yield have been attributed to the addition of silicon to the feed schedule

providing the lamp plenty of time to get to full power

Requires only pliers or crescent wrench to assemble

2 flotation disks

20x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 6 Pack New-releases Unlike other brandsImportant 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 20x20x4 filter