15x20x2 Pleated MERV 13 Air Filters 3 Pack grow-light-reflectors Start with Grow Big for

Start with Grow Big for growth

Beam angle: 170°

acidic buffer lowers water and nutrient solution pH

both of which aid plant nutrient uptake and increases soil vitality

15x20x2 Pleated MERV 13 Air Filters 3 Pack grow-light-reflectors Start with Grow Big forNordic 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