12x15x1 MERV 13 AC Furnace Filters 6 Pack spl_nextlight Many choose to have theirs

Many choose to have theirs on a patio or a balcony where they will receive most sunshine

introducing far-red light after the lights have been turned off can lengthen the dark period to encourage the flowering process

oil seeds and peanuts

Sunrise/sunset simulation settings to provide a gradual ramp-up and down at both ends of your photoperiod

Great for cutting roots

12x15x1 MERV 13 AC Furnace Filters 6 Pack spl_nextlight Many choose to have theirsNordic 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