20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 6 Pack extraction Unlike single-part bloom formulas that

Unlike single-part bloom formulas that leave growers guessing

This compost

depending on your home or office environment to maintain maximum efficiency and economy

Proven Phantom reliability and performance

5 pounds are sold individually

20x25x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 6 Pack extraction Unlike single-part bloom formulas thatImportant 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