20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 13 Plus Carbon 2 Pack spl_hrg Check the release area for

Check the release area for live assassin bugs periodically and contact us if you have questions or concerns

Active tip probe length 50 mm/2''

Replacement Probe for GroChek H19813-6

Pyur Scientific Propelyne Glycol USP Kosher 5 Gallon

batteries and lanyard

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 13 Plus Carbon 2 Pack spl_hrg Check the release area forImportant 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,