11 1/4x11 1/4x1 Exact MERV 12 AC Furnace Filters 12 Pack spl_cg 【Coverage Area】Perfect for 4’x3’ vegetative

【Coverage Area】Perfect for 4’x3’ vegetative coverage at 24” and 4’x2’ flowering coverage at 20” height

making nutrients more available and increasing uptake

with smooth and shallow drainage channels

- OMRI listed

11 1/4x11 1/4x1 Exact MERV 12 AC Furnace Filters 12 Pack spl_cg 【Coverage Area】Perfect for 4’x3’ vegetativeNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different