10x20x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack CO2 77 EC calibration solution (50

77 EC calibration solution (50 ml bottle)

Can be used alone or in conjunction with any feeding regimen

6000-6500K

This 913048D comes with our recommended vented humidity dome which helps with root growth and development

• Exclusive CAL CHECK™ feature

10x20x2 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack CO2 77 EC calibration solution (50Nordic Pure 10x20x2 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