20x20x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack timers-and-instruments It’s designed to be the

It’s designed to be the true 1:1 replacement for the fixture that helped revolutionize the industry nearly three decades ago

Covers the porthole so that evaporation of the nutrient solution is minimized

What to expect

Nordic Pure 16x20x5 Honeywell Replacement MERV 12 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”

this key element is often missing and keeps plants from reaching their full genetic potential and optimal health condition

20x20x1 Furnace Air Filters MERV 12 Pleated Plus Carbon 6 Pack timers-and-instruments It’s designed to be theNordic Pure 20x20x1 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer. This results in less flow restriction and 33% more surface area for cleaner smelling air. It will help eliminate unwanted odors as well as trap most airborne dust and particulate matter for fresh, clean air. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material