16x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 6 Pack Garden Hygiene and Safety Color: Black

Color: Black

the KDF-85 process media uses a redox (oxidation-reduction) reaction to convert harmful compounds into harmless ones

CLONE MODERATELY DIFFICULT TO ROOT PLANTS (#8)

Customize your feed: pick and choose which plants to connect and how many lines feed each plant

and corrosive to some soft plastics - so you must HANDLE SAFELY WITH PROPER SAFETY EQUIPMENT

16x20x4 (3 5/8) Pure Carbon Pleated Odor Reduction Merv 8 Furnace Filters 6 Pack Garden Hygiene and Safety Color: BlackImportant 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