20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 1 Pack Meters & Solutions Complies with the USA Federal

Complies with the USA Federal Standard 21 CFR 1040

the specially inset diodes are easy to clean and maintain

The purpose is to support the requirement of the plant in the different plant stages

Selectable overdose protection system

this instrument guarantees about 200 hours of continuous operation

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 12 Air Filters 1 Pack Meters & Solutions Complies with the USA FederalImportant 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,