12x26_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil integrating the first of its

integrating the first of its kind

eliminating the need for constant adjustments

Whether you are growing traditionally or hydroponically

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

This product is designed to help get you started growing your own food and herbs

12x26_1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil integrating the first of itsNordic 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