8x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 12 Pack Grow System/ Trays/ Reservoirs all it requires is removal

all it requires is removal of debris between uses and occasional lubrication of the zipper

Lightweight and easy to hang

Just spray it on your plants about once a week

accurate pH measurement in nutrient solution and root-zone from the palm of your hand

The smart environmental monitor

8x20x1 Furnace Air Filters MERV 10 Pleated Plus Carbon 12 Pack Grow System/ Trays/ Reservoirs all it requires is removalNordic Pure 8x20x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer. This results in less flow restriction and 33% more surface area for cleaner smelling air. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material