21x22x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Lighting Accessories Roots Organics B2 Professional Grade

Roots Organics B2 Professional Grade Container Media can act as a direct planting media or be used as the perfect base mix

Tubing:  White Flex PE 5/3mm 0

Designed for use in greenhouses

perfectly balanced construction and an ultra-lightweight

Self-sealing air filter for efficient protection of components

21x22x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Lighting Accessories Roots Organics B2 Professional GradeNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.