13 15/16 x 29 15/16 x 3/4 (13.94 x 29.94 x 0.75) Pleated MERV 13 Air Filters 3 Pack fluorescent-lighting 12" High-Output In-Line Duct Fan

12" High-Output In-Line Duct Fan

Mix the slurry very well each time(spores will settle if no consistent water movement) prior to dunking/swiping the root zone a quarter inch to a half inch of the rockwool/starter cubes

Simply inhale on the mouthpiece and the pen will automatically power on

puncture-proof

setup and modifications to your grow schedules will never be easier

13 15/16 x 29 15/16 x 3/4 (13.94 x 29.94 x 0.75) Pleated MERV 13 Air Filters 3 Pack fluorescent-lighting 12" High-Output In-Line Duct FanNordic Pure MERV 13 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200