16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 2 Pack additives set the run time

set the run time

75-inch forged cutting blades and extruded aluminum handles reduces cutting effort while providing precise clean cuts

Set the pH value to 5

This Active Aqua 251 GPH pump is recommended for 25 gallon reservoirs

The DiST's ease of use

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 8 Pleated Plus Carbon 2 Pack additives set the run timeImportant 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,