12x16x1 MERV 14 AC Furnace Filters 6 Pack HPS Keep your base nutrients low

Keep your base nutrients low as in the rooting stage adding Rootbastic will primarily stimulate your root production

Mix 3-4 lbs of granular per cubic yard of soil

Experience exceptional color balancing for metal halide lighting with our proprietary polymer lenses manufactured for us to exacting standards by Carl Zeiss Vision

Using thermal electric Peltier technology

12x16x1 MERV 14 AC Furnace Filters 6 Pack HPS Keep your base nutrients lowNordic 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.