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Welded sleeve allows the user to freeze the material column with dry ice
Suitable for use in damp locations
evenly distributes ONA for areas up to 10
Easy handling
The carbon filter is no longer limited to being located inside the grow room
17x20x1 MERV 13 AC Furnace Filters 6 Pack Electrical Components Welded sleeve allows the userNordic 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
