17x26x1 Exact MERV 13 AC Furnace Filters 6 Pack Grow Light Ballasts 88Cell depth (inches): 4

88Cell depth (inches): 4

Special alloy FORGED steel is heat treated and tempered to produce a razor edge that stays sharp longer

The PowerVEG 660 is one of two red spectrallyfocused lamps designed for fruiting and flowering

root drench or soil treatment

This Product Controls These Pests or Diseases: Fungi

17x26x1 Exact MERV 13 AC Furnace Filters 6 Pack Grow Light Ballasts 88Cell depth (inches): 4Nordic 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