13x18x1 Exact MERV 8 AC Furnace Filters 6 Pack garden-accessories PfrSpec targets far-red wavelengths for

PfrSpec targets far-red wavelengths for photoperiod control and stem elongation

• For fruit trees or grapes: apply at bud break

Hand crafted and beautiful design

240V power is wired directly into the eight outlet timer box

13x18x1 Exact MERV 8 AC Furnace Filters 6 Pack garden-accessories PfrSpec targets far-red wavelengths forNordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters