9x27x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack misc Perlite ore is a naturally

Perlite ore is a naturally occurring volcanic glass containing a small percentage of water

MID/LATE BLOOM (WEEKS 4 – 8): 3 ML – 4 ML PER GAL

• Weight: 65lbs

5% Driver Efficiency

nor does it include bio-stimulants

9x27x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack misc Perlite ore is a naturallyNordic 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