11 1/4x19 1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack spl_dakine420 * 2 fan speed

* 2 fan speed

presence and numbers of natural pest predators

For All Other Pests:

9" electrical cord

It is 100% soluble and is compatible with all growing mediums

11 1/4x19 1/4x1 Exact MERV 13 AC Furnace Filters 6 Pack spl_dakine420 * 2 fan speedNordic 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