13x21_3/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_hw Nutrients marked with an asterisk

Nutrients marked with an asterisk () are guaranteed in all states

virus carriers

Total Capacity – 1L

Podosphaera fusca

13x21_3/4x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack spl_hw Nutrients marked with an asteriskNordic 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