16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack Travel Bags & Backpacks With an attached hood and

With an attached hood and secure elastic wrists and ankles

Dimensions: 35mm (lens height) x 12mm (bridge width) x 132mm (full width)

waxed cardboard

SUNMASTER 600W COOL

Chironomus plumosus

16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack Travel Bags & Backpacks With an attached hood andImportant 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