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and one thermal probe port
15A 120V switches OFF when sense cord is powered
Reduces the chance for overwatering
This digital thermostatic device allows growers to select and maintain optimal temperatures when germinating seeds or rooting cuttings for fastest growth
They will also put out organic acids that solubize nutrients for easier uptake
16_1/2x21x1 Exact MERV 13 AC Furnace Filters 6 Pack Commercial Lighting and one thermal probe portNordic 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