21x22x1 MERV 13 AC Furnace Filters 6 Pack Nutriants Reduces biofilm - Keep lines

Reduces biofilm - Keep lines clear of dangerous organic material

Maximizes your germination success and great for seedlings

so strain before applying

each fan unit can daisy chain additional MULTIFAN S series fans

LTL Temp Controllers can be used to control the temperature of many appliances

21x22x1 MERV 13 AC Furnace Filters 6 Pack Nutriants Reduces biofilm - Keep linesNordic 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