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Case of 12
• Condensing coil for efficient recovery
💧 Boost water uptake — stimulates mycorrhizal growth for better root absorption
GrowSafe is:
and forget it
16x21x1 MERV 14 AC Furnace Filters 6 Pack grow-system/-trays/-reservoirs Case of 12Nordic 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.
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