16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 2 Pack rockwool root radiance is ideal for

root radiance is ideal for greenhouses

The controller uses 0-10V adjustable DC voltage to control ballast output power and switch on/off the ballast

It also tracks the independent job hours

Dimensions 4’x4’x6’11

has a built in cool tube for maximum airflow and cooling capabilities

16x20x5 (4 3/8) Honeywell/Lennox Replacement Air Filters MERV 10 Pleated Plus Carbon 2 Pack rockwool root radiance is ideal 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,