21 1/2x23x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow1 5' Steel Stake This is a passive unit

This is a passive unit that utilizes pressure differences created by manipulating temperature to move solvent

One of the main advantages of the Herbva 5G is that it reaches proper heating temperature very quickly

Send wireless data up to 100m/330ft (typical indoor)*

It's easy to place fruits into the sling bag with our expertly designed bag lip which keeps the sling always open

Provides all nutrients required for vegetative growth when combined with grow part b

21 1/2x23x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow1 5' Steel Stake This is a passive unitNordic 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.