16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 2 Pack chillers-heaters-and-purification produces minimal heat and is

produces minimal heat and is silent

Two calibration solutions for the price of one

and liquids

Flies are typically lured into the trap within seconds of the bait being activated

16x20x5 (4 3/8) Honeywell/Lennox Replacement MERV 8 Air Filters 2 Pack chillers-heaters-and-purification produces minimal heat and isImportant 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,