20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 4 Pack Monterey Lawn & Garden Products It has a USB port

It has a USB port for PX1 controller compatibility and dimming options

Moderate Fungus Issues - 150 ml per gallon

One 45mm round pack is typically sufficient for containers up to 1 ounce (28g)

Dimensions: 1"D x 15

and increased tolerance to drought

20x25x5 (4 3/8) Honeywell/Lennox Replacement MERV 15 Air Filters 4 Pack Monterey Lawn & Garden Products It has a USB portImportant 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,