14x18x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Aeromixer Calibration: Digital calibration by push

Calibration: Digital calibration by push button

More than twice the amount of wool as our Hugo Block

Ease of Installation

A flared end keeps your hand from slipping toward the blade

14x18x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack Aeromixer Calibration: Digital calibration by pushNordic 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