16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack Pots and Containers The exposed stainless steel temperature

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

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

3') coaxial cable and has Bayonet Neill-Concelman (BNC) connector for tight coaxial cable connections

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

Their bright color makes them easy to locate

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 10 Air Filters 1 Pack Pots and Containers The exposed stainless steel temperatureImportant 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,