Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 8 Pleated Plus Carbon 4 Pack pots-containers Maximum of 1 hour REI

Maximum of 1 hour REI when applied in enclosed environments

disables and kills fruit flies

Included are beneficial mycorrhizal fungi

This revolutionary formula was designed to allow for maximum versatility throughout the grow cycle

Air Bear 16x25x5 (4 7/8) Air Filter Replacement MERV 8 Pleated Plus Carbon 4 Pack pots-containers Maximum of 1 hour REIImportant 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. We also carry 4 3 8 and 5 1 4 inch depth filters,