20x25x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 3 Pack complete-systems Use to adjust the pH

Use to adjust the pH of fertilizer and plant micronutrient foliar solutions

Environment: Can be used on plants grown indoors

Choose your desired CO2 level and the controller will maintain that specified value

• Grow light outlets

The results are circling roots or roots that grow out of the bags

20x25x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 3 Pack complete-systems Use to adjust the pHNordic Pure 20x25x1 MERV 12 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