20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 14 Plus Carbon 1 Pack soil The larvae are grey alligator

The larvae are grey alligator shaped with light colored bands running along the abdomen

a speed controller with a power plug

PhysioSpec Indoor™

Special order item only

With built-in humidistat controls

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 14 Plus Carbon 1 Pack soil The larvae are grey alligatorImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,