21 1/2x26x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Ventilation Hoods are designed with tunnelized

Hoods are designed with tunnelized elastic to offer a more secure closure

They reliably warm the root zone to 10ºF-20ºF above ambient air temperature

General frequencies of use: Every 12 weeks throughout the growing season

CPS5036 – 2 Dry Electropolish and 2 Wet Quantanium Tumblers

These trays can be readily incorporated into your growing operation

21 1/2x26x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Ventilation Hoods are designed with tunnelizedNordic 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.