8x8x1 Exact MERV 13 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification Add 12 ml per gallon

Add 12 ml per gallon of water once per week or with every feeding

Water transplant thoroughly

Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops

hour (180x faster than hand sorting)

This organic liquid has a well-balanced NPK of 2-3-1 to give you a complete fertilization profile

8x8x1 Exact MERV 13 AC Furnace Filters 6 Pack AC / Dehumidification / Humidification Add 12 ml per gallonNordic 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