16x20x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack spl_hgc Grain Mites

Grain Mites

Micro activity is created as the liquids work with the substrate to produce organic catalysts

it can cause topical itching and when they ingest it they'll experience digestive upset

With regular use

Root Drench

16x20x4 (3 5/8) Pleated MERV 14 Air Filters 2 Pack spl_hgc Grain MitesImportant 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 16x20x4 filter