13x21x1 Exact MERV 10 AC Furnace Filters 12 Pack dupe and the rubber feet minimize

and the rubber feet minimize vibration and hum as they protect the surface the ballast sits on

the BlackBird delivers the intensity and spectrum your plants need from veg through harvest

Cycle timer outlet modes: day only/night only/24 hours

- 3” contracting black trim detail

Stimulates resin and crystal production in all varieties

13x21x1 Exact MERV 10 AC Furnace Filters 12 Pack dupe and the rubber feet minimizeNordic Pure MERV 10 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, allergens and other contaminants are removed. MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900 1000. While different companies