12x14x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack hawthorne • High quality nutrient probe

• High quality nutrient probe

Temperature compensation: none

Compounding performance in multi-light configurations

LED Status Indicator

Sodium Molybdate

12x14x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack hawthorne • High quality nutrient probeNordic 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