13x21x1 Exact MERV 14 AC Furnace Filters 12 Pack controllers Measures 52" L x 30"

Measures 52" L x 30" W x 24" H

Application Guidelines:

The Illuminati Super Green LED Light Bulb (SG Night Light) allows you to work in your grow room during the dark cycle without disturbing your plant's photoperiod

That means you can maximize your moisture removal capacity and maintain tight control over Vapor Pressure Deficit during late flower cultivation by modulating the refrigeration system to match the load

5% relative humidity non-adjustable deadband

13x21x1 Exact MERV 14 AC Furnace Filters 12 Pack controllers Measures 52" L x 30"Nordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.