12_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack reflective-and-greenhouse-films works up to ten years

works up to ten years

DIN connector and 1m cable (included)

Reapply if it rains within 24 hours

You will see stronger

No more ropes hanging everywhere

12_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack reflective-and-greenhouse-films works up to ten yearsNordic Pure Custom MERV 13 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