18x22x1 MERV 10 Plus Carbon AC Furnace Filters 12 Pack timers-and-instruments Exhaust fans with high CFM

Exhaust fans with high CFM ratings can create too much negative air pressure that the canvas walls flex inward

4x4 Tent Full Cycle Grows – Ideal as a single-light solution for complete veg-to-flower cycles in standard 4x4 grow tents

Continual use of these bloom additives will ensure your plants will stay on the right course

Can be heat sealed

18x22x1 MERV 10 Plus Carbon AC Furnace Filters 12 Pack timers-and-instruments Exhaust fans with high CFMNordic 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.