16x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack soil nutruient European-made VS K12 x 30S

European-made VS K12 x 30S high temperature lamp holders

High accuracy

fit the Circulator into the center holes

Constructed with an aluminum mounting frame and heavy-duty steel enclosure

These blue

16x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 2 Pack soil nutruient European-made VS K12 x 30SImportant 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