11_1/2x11_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack refurbished-products Thrips & more

Thrips & more

total dissolved solids (TDS)

commercial organic farmers

The case is designed to dissipate heat quickly

11_1/2x11_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack refurbished-products Thrips & moreNordic Pure Custom MERV 12 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