16x36x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack pumps-and-irrigation-supplies Operate in ambient temperatures between

Operate in ambient temperatures between -40°C (-40°F) and 35°C (95°F) when suspended

New and improved wetting agent and hydrophilic technology greatly enhances the water characteristics of Grodan Gro-Blocks Improved giving even better water distribution over the height of the block

Optimize Coverage - 4ft × 4ft

With its durable all-aluminum exterior construction and offset high/low component orientation

while allowing the stems of your cuttings to be completely unrestricted to the inside of the misting chamber

16x36x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack pumps-and-irrigation-supplies Operate in ambient temperatures betweenNordic 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.