8x10x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Environmental Controllers Electrical Port Quantity: 2 (3")

Electrical Port Quantity: 2 (3")

and yeast and mold spore cells

Early-season and pre-bloom applications are most effective

Convert Digital Signal to Analog Signal

Our powerful one-part grow and one-part bloom formula can serve as base nutrition or as a supplement

8x10x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Environmental Controllers Electrical Port Quantity: 2 (3")Nordic 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