16x20x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack micro-nutrients Includes a standard high efficacy

Includes a standard high efficacy filter that traps particles like dust

- Smooth rotating knobs with continuous adjustment

• Bag has multiple hanging points

- Precise external temperature sensor on 20 inch (50 cm) cable to place at plants top level: ±1

Net Weight: 16

16x20x4 (3 5/8) Pleated MERV 14 Air Filters 1 Pack micro-nutrients Includes a standard high efficacyImportant 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