17_1/4x29_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Power & Lamp Cords fan and light schedules are

fan and light schedules are all completely customizable

Multi-range pH/EC/TDS and Temperature meter

Growers have reported high temperatures in black tubing

Feed 1-2 tsp

Results are seen within hours

17_1/4x29_1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Power & Lamp Cords fan and light schedules areNordic 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