8x12x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Cone Filler depending on the strain

depending on the strain

thicker handling straps and larger and thicker handles to prevent tearing

This is the piece of glass only for the lens

Dolomite (PH adjuster)

thrips and more

8x12x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Cone Filler depending on the strainNordic 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