20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack vacuum 500K 22¾” x 3” x

500K 22¾” x 3” x 1¾” 1 lbs 22⅞” x 3¾” x 1¾” 1

FirmGrip non-skid shoe covers are designed for tough working environments

【DIMMER FUNCTION】An added dimmer knob is featured to manipulate the brightness level of the light

Not only are they non-toxic and often biodegradable

They contain a natural electrical charge that attracts nutrients and minerals from both the microbiological soil base and the applied organic fertilizers

20x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack vacuum 500K 22¾” x 3” xImportant 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 20x20x4 filter