9_3/4x23_3/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Chemicals Environment Medium Gas Density

Environment Medium Gas Density

Standards have KCl

respirator

was designed in Humboldt County to be used with our Grow and Micro to be a complete growing nutrient system for hydroponics as well as other growing mediums

peroxyacetic and peracetic acids)

9_3/4x23_3/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Chemicals Environment Medium Gas DensityNordic 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