18x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack sprayers-and-wands Box Dimensions: 5

Box Dimensions: 5

and weed density

Every growers setup is unique to their needs and the Niwa Grow Hub+ allows users to keep their setup and automate at the same time

CES pH Down™

Green Manufacturing:

18x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack sprayers-and-wands Box Dimensions: 5Nordic Pure Custom MERV 12 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition