8x8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_bfg and 5 gallon container sizes

and 5 gallon container sizes to fit any growers needs

• Instructions included

Displays pH & EC simultaneously

that the plant will uptake and spread throughout its vascular system

encroaching on your precious grow space

8x8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_bfg and 5 gallon container sizesNordic Pure Custom MERV 7 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