18x27x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack commercial-greenhouse-fixtures 3 cu ft/150 L

3 cu ft/150 L

- Will Work With Any Ballast

Case quantity = 4

Active Aqua 1/2"

18x27x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack commercial-greenhouse-fixtures 3 cu ft/150 LNordic 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