20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 14 Plus Carbon 2 Pack hydro-systems Expanded size: 5" x 5"

Expanded size: 5" x 5" x 5"

Terpinator 0-0-4 is a proprietary blend of organic inputs and plant extracts that create a soluble liquid plant food

The most stable output frequency of any ballast

Includes a 12-foot corded sensor probe

A Hydrofarm exclusive

20x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 14 Plus Carbon 2 Pack hydro-systems Expanded size: 5" x 5"Important 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,