18x25x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack Reflectors & Grow Lights Plant Growth Promoting Substrate (trace

Plant Growth Promoting Substrate (trace minerals for flower development

Hanna's line of solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet

Harvest time reduced by approximately 30% versus traditional methods

Floating raft system with air stone

or 1 pouch per 750-1500 gallons

18x25x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 12 Pack Reflectors & Grow Lights Plant Growth Promoting Substrate (traceNordic Pure 18x25x1 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