16x20x4 (3 5/8) Pleated MERV 7 Air Filters 2 Pack Lighting Accessories Drivers built-in design are saving

Drivers built-in design are saving you lots of mounting time

This is the real deal for large-scale operations

four rubber washers

and 0 to 400 mg/L (ppm) for TDS

16x20x4 (3 5/8) Pleated MERV 7 Air Filters 2 Pack Lighting Accessories Drivers built-in design are savingImportant 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