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Ships within 48 hours · Estimated delivery Oct 15 - Oct 20
add Elite 91 Silicic Acid in the foliar mix first
and OMRI Listed
PrSpec delivers red-dominant output for high photosynthetic efficiency
3’ coverage indoor grow areas
20x26x1 MERV 13 AC Furnace Filters 6 Pack Controller add Elite 91 Silicic AcidNordic 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
US$ 129.38
US$ 106.18
US$ 131.94
