10x15x1 MERV 13 AC Furnace Filters 6 Pack spl_hgc The spectral flexibility alone is

The spectral flexibility alone is worth the investment — we switched from PhysioSpec to AnthoSpec mid-cycle and saw a noticeable improvement in color development

Citrus Fruits

Humidity=90%

and is well-suited for hydroponic reservoirs

1 x Matrix Circulator | 3"

10x15x1 MERV 13 AC Furnace Filters 6 Pack spl_hgc The spectral flexibility alone isNordic 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