16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 2 Pack discounted Replace your original 150 micron

Replace your original 150 micron screen

Brown Rot and Blossom Blight (Monilinia spp)

The clean cuts made by the grafting tool allow you to get a perfect fit

Pediococcus damnosus

It is designed for Hydro-X Pro system only

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 2 Pack discounted Replace your original 150 micronImportant 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,