20x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 1 Pack bloom Also included are stick-on labels

Also included are stick-on labels for identifying contents and storage date

🔥 High Heat ToleranceFunctions effectively from 59°F to 95°F (15°C–35°C)

The SuperPonics 16-Plant Hydroponic Grow System grows your plants up to 5x faster

Inoculate at any time throughout a plants' life with KALIX stage-specific microbe blends

20x20x4 (3 5/8) Pleated Air Filters MERV 15 Plus Carbon 1 Pack bloom Also included are stick-on labelsImportant 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