16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 14 Plus Carbon 1 Pack Meters & Solutions The 20 ml sachets are

The 20 ml sachets are ideal for infrequent calibrations while for heavy-duty applications

and remember

The mesh allows for ventilation to keep your face cool as you work

This is an exceptional product for use on recently laid sod

Treats up to 150 plants

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 14 Plus Carbon 1 Pack Meters & Solutions The 20 ml sachets areImportant 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,