12x26_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil Excellent maintenance of PAR/PPF over

Excellent maintenance of PAR/PPF over long lamp life means great value and far longer re-lamping intervals

- Uses a systemic action within the plant

eliminating the need for constant adjustments

multimedia friendly

12x26_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil Excellent maintenance of PAR/PPF overNordic 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