20x25x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack pots-and-containers Can be mounted horizontal or

Can be mounted horizontal or vertical

As an insecticide and miticide

This controller allows you to set the idle speed to 50%

Symbols and messages on the LCD indicate meter status and guides users through operations

this 5-tube ion generator floods your airspace with positive and negative ions — neutralizing contaminants at the source and leaving your environment cleaner

20x25x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack pots-and-containers Can be mounted horizontal orImportant 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