20x25x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack microbial fertilizer Use to top-dress existing beds

Use to top-dress existing beds and extend root protection by a second application at transplant or after 10-12 weeks

Sweet Potato Weevil

Designed to flow 8

Use to Kill Russet Mites

Two dedicated temperature sensors

20x25x4 (3 5/8) Pleated MERV 13 Air Filters 2 Pack microbial fertilizer Use to top-dress existing bedsImportant 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