16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack Pots and Containers nighttime only or both

nighttime only or both

These clay pebbles have been fired in super-heated kilns causing them to expand and become extremely porous

The Eclipse F90’s sensitive and intelligent remote combination probe features a highly accurate temp/humidity and low-drift dual beam CO2 sensor

3600 maximum watts

The exposed stainless steel temperature sensor on these models facilitates faster and more accurate temperature measurement

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack Pots and Containers nighttime only or bothImportant 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,