The thin shutter blades automatically open when the duct fan runs and closes when not in use
Optimum Temperature and Humidity: 68-90°F (20-27°C) and 60-90% Relative Humidity
Item # Description Box Dimension Gross lbs CS/QTY UG-D/ALU/12 UltraGrow – Aluminum Ducting 12” 25′ with 2 clamps 24¾” x 24¾” x 12½” 23
foliage and flowering plants and more
Green Aminos is particularly beneficial in the early stages of plant growth
14x24x1 Pleated MERV 14 Air Filters 12 Pack microbes The thin shutter blades automaticallyNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.