16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 4 Pack spl_hf Adult parasites emerge to live

Adult parasites emerge to live approximately 26 days and also feed on the honeydew secreted by scale

Removes scale and hard water deposits

Fuzzy logic applies constant calculations to the output controlling your CO2 regulator to ensure that you do not undershoot or overshoot your predetermined set point

Great for processing

When placed on top

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 15 Plus Carbon 4 Pack spl_hf Adult parasites emerge to liveImportant 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,