16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 1 Pack Air Filter Use OxiPhos throughout the growing

Use OxiPhos throughout the growing season to both prevent and control plant pathogens

Fuel Tank Capacity: 3

This combination makes the meter particularly designed to withstand harsh environments such as fertilizer solutions

Organic Neem Spray Controls Farm & Garden Pests Now Registered for Use on Hemp

16x20x4 (3 5/8) Furnace Air Filters MERV 8 Pleated Plus Carbon 1 Pack Air Filter Use OxiPhos throughout the growingImportant 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