15x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses has louvered venting for cool

has louvered venting for cool operation

EthylBloc™ is a trademark of AgroFresh Inc

or grow fresh herbs right in your kitchen all year long

Frequency - 50-60Hz

• Innovative circular vents maximize reflectivity

15x18x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses has louvered venting for coolNordic Pure Custom MERV 8 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