13x18x1 Exact MERV 13 AC Furnace Filters 6 Pack grow-light-ballasts both novice and experienced growers

both novice and experienced growers should recognize superior performance and outstanding results

tapered tips reach the smallest of cutting areas

Large Rack: 54" x 20" x 36"

Trials have shown that an increase in ethylene concentration results in a reduced time to harvest and synchronized

Electrical magnetic air compressor in a high quality aluminum alloy case

13x18x1 Exact MERV 13 AC Furnace Filters 6 Pack grow-light-ballasts both novice and experienced growersNordic 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