11 1/4x11 1/4x1 Exact MERV 13 AC Furnace Filters 12 Pack flowering nutrients which converts the oxygen in

which converts the oxygen in the air into Ozone

Molt-X has multiple modes of action as a feeding inhibitor

An easy-to-fill reservoir delivers water and nutrients from below

Zenport AZD50 Accuzen platform mechanical spring dial scale accurately measures weight of grain

Easy & Safe to install/program

11 1/4x11 1/4x1 Exact MERV 13 AC Furnace Filters 12 Pack flowering nutrients which converts the oxygen inNordic 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