20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 1 Pack stocked - 600w Metal halide bulb

- 600w Metal halide bulb

Simply pull straight up on the mouthpiece to remove it and access the heating chamber

EZ-CLONE Cloning collars are available in 17

Keep your grow area clean to prevent the spread of pathogens throughout your crop

the fabric helps prevent heat stress with enhanced moisture vapor transmission

20x20x4 (3 5/8) Furnace Air Filters MERV 10 Pleated Plus Carbon 1 Pack stocked - 600w Metal halide bulbImportant 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. If you are replacing a 4 3 8 depth 20x20x4 filter