20x25x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack growing-accessories 1" corrosion resistant brass ball

1" corrosion resistant brass ball valve

Food- and furniture-grade materials

• Daylight readable blue LEDs

One of the smallest yet most powerful Ultra-Low Volume (ULV) foggers available on the market

just place it on top of Big Mama

20x25x4 (3 5/8) Pleated MERV 10 Air Filters 2 Pack growing-accessories 1" corrosion resistant brass ballImportant 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