16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 14 Plus Carbon 4 Pack veg nutrients The rechargeable battery lasts for

The rechargeable battery lasts for up to 8 hours after a full charge

Certificate: DLC

• Compatible with 4" to 12"round air ducts

Or add 4-foot and 8-foot Middle Trays to create sections 12

A light meter allows growers an accurate means of adapting to their plants' needs as the light conditions change during a full growing season

16x25x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 14 Plus Carbon 4 Pack veg nutrients The rechargeable battery lasts 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,