16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 2 Pack X Nutrients Reapply after 5–7 days if

Reapply after 5–7 days if needed for tougher weeds

Made out of medical-grade stainless steel

Extremely energy Efficient

Ready-to-use

and try it on your most demanding trees and shrubs

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 2 Pack X Nutrients Reapply after 5–7 days ifImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,