8x18x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack lighting-accessories • Internal Control Board: Manages

• Internal Control Board: Manages the complete operation of the humidifier

and T6 Leaf Collectors

one 8 oz BioRoot

and vigorous early growth in both stem cuttings and seedlings

potassium (K)

8x18x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack lighting-accessories • Internal Control Board: ManagesNordic Pure Custom MERV 14 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