24x24x1 Pleated MERV 14 Air Filters 3 Pack hydro-systems Maintenance: Mix ¼–½ tsp per

Maintenance: Mix ¼–½ tsp per gallon of water with every watering

The silver "plus" lens coating makes the Operator MH+ a good choice for outdoors too

Nordic Pure 20x25x5 Air Bear Replacement MERV 8 Carbon air filters measure an actual depth of 4 7/8"

Size: 70×20

An extra sharp blade allows for clean cuts without damaging the plants and the built-in fan blows the small leaves into a catch bag for clean and easy transporting or disposing

24x24x1 Pleated MERV 14 Air Filters 3 Pack hydro-systems Maintenance: Mix ¼–½ tsp perNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.