16x20x4 (3 5/8) Pleated MERV 15 Air Filters 1 Pack lighting-&-electrical-components runs 70% cooler than HID

runs 70% cooler than HID lights

• Full dewaxing without second solvent

Uncinula necator

each monitoring and measuring specific parameters within the nutrient solution

Press gently around stem

16x20x4 (3 5/8) Pleated MERV 15 Air Filters 1 Pack lighting-&-electrical-components runs 70% cooler than HIDImportant 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