16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack spl_centurionpro Release rate: 500-1

Release rate: 500-1

The thermal or impedance protected gear motor is safe

the sharp cross-cutting action is ideally paired with an efficient bud trimmer

• Run at 100% or 75% power

Scoop VermiLife into your extraction bag as indicated and go get your bucket of VermiFeast

16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 2 Pack spl_centurionpro Release rate: 500-1Important 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