20x25x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack shoe-cover Its specially designed organic formulation

Its specially designed organic formulation targets increases in fruit set

Cucurbit Vegetables

and a glass body making it ideal for measuring the pH of soil directly or after preparation of a soil slurry with deionized water

First of its kind

20x25x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack shoe-cover Its specially designed organic formulationImportant 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