12_3/4x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack dis 1 Base (200gr) & 1

1 Base (200gr) & 1 Bloom (200gr)

12'' x 40'' Charco Filters Plus Activated Carbon Air Filter

Brevibactertum ammoniagenes

make the PROfilters 45s and 70s ideal for residential filtration

200 – 300 LPH Oil (110 LPH Water) Flow Rate

12_3/4x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack dis 1 Base (200gr) & 1Nordic Pure Custom MERV 7 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