11x32_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Light Fixture Some applications may require different

Some applications may require different dosages

These nematodes perform well in indoor grow environments

000 T10 12

The result is healthier

High red and blue spectral ratios for good photosynthesis efficiency

11x32_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Light Fixture Some applications may require differentNordic 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