20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 4 Pack Monitors & Timers • Motor Power: 1

• Motor Power: 1

Operates with a high frequency

These Sterile Sleeves are made of a comfortable fabric that protects against various liquids and particulates

leading to dead or unviable

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 13 Air Filters 4 Pack Monitors & Timers • Motor Power: 1Important 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,