20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack Commercial Lighting Smart Volt auto-switching and regulating

Smart Volt auto-switching and regulating power supply adjusts to appropriate voltage for international use

Shake or stir concentrate well before measuring and mixing

62% - BULK - No overwrap - NO HIC - Packed in one master case with DBL overwrap

Concentrated

The case is designed to dissipate heat quickly

20x20x4 (3 5/8) Pleated Air Filters MERV 7 Plus Carbon 6 Pack Commercial Lighting Smart Volt auto-switching and regulatingImportant 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