24x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 1 Pack commercial-lighting-fixture Sterilized to ensure successful colonization

Sterilized to ensure successful colonization without contamination

so weeds don't return

The unit is IP44 rated to be highly resistant to dust and liquids

Can be use by itself or together with other fertilizers

24x24x4 (3 5/8) Pleated Air Filters MERV 13 Plus Carbon 1 Pack commercial-lighting-fixture Sterilized to ensure successful colonizationNordic Pure 24x24x4 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract and capture most airborne particulates in your home. 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 while