20x22x1 Pleated MERV 7 Air Filters 6 Pack Steel stake * All Vortex PROfilter products

* All Vortex PROfilter products come with a PREfilter included

The Icarus unit shares the same function of the standard Bi-directional extractors

Daisy chain feature assists growers to use multiple lights together with less outlet

The convection cooling on this ballast is so solid that all units include a five-year warranty

Spinosad works on the insects' nervous system

20x22x1 Pleated MERV 7 Air Filters 6 Pack Steel stake * All Vortex PROfilter productsNordic Pure MERV 7 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 and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters