From the household hobbyist to the commercial level grower
Control the light cycle in your greenhouse & hoop house
and can be added to the hydroponic reservoir with confidence
Built-in circuitry protects your investment from misuse
myco-active mix is recommended for growing outdoor foliage crops
27x27x1 MERV 13 AC Furnace Filters 6 Pack controllers From the household hobbyist toNordic 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