12x14x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES Super Nitro Bat Guano is

Super Nitro Bat Guano is fast acting and is so powerful it should be used carefully and sparingly

25 in x 2 in

Whether you’re in a cleanroom

Glomus mosseae

In about 17 to 21 days

12x14x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack AIR FILTER BOXES Super Nitro Bat Guano 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