8x8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_bfg Be sure to lower your

Be sure to lower your nutrient levels to compensate and avoid overfeeding

that the plant will uptake and spread throughout its vascular system

encroaching on your precious grow space

Displays pH & EC simultaneously

The bin is designed for optimal airflow and control with a black base that ensures vertical growth in the ideal size for any grower

8x8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_bfg Be sure to lower yourNordic 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