10x22x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack spl_hf Fired-blown clay material that is

Fired-blown clay material that is sterile

Powerful ratchet cutting action

8-Bag Kit (HGB18K) includes all EXTRACT

for soil and hydroponics

spider mites do not become immune to Green Cleaner

10x22x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack spl_hf Fired-blown clay material that isNordic 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