16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack Travel Bags & Backpacks waxed cardboard

waxed cardboard

Chironomus plumosus

A tear-resistant liquid and particulate barrier helps protect against blood penetration

Both electrodes are compatible with existing models of HI9814

With an attached hood and secure elastic wrists and ankles

16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 6 Pack Travel Bags & Backpacks waxed cardboardImportant 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