17x27x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses • Antibacterial and antifungal properties

• Antibacterial and antifungal properties

simple sugar

-Black on the outside/ White on the inside

2 μmol/J (PhysioSpec Indoor

Plug & Play

17x27x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses • Antibacterial and antifungal propertiesNordic 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