16x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements Every model is built for

Every model is built for direct connection in-line with standard diameter round ducting

disabled Environment 0 to 50°C (32 to 122°F)

or general plant production

The thermal or impedance protected gear motor is safe

poultry farms

16x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack nutrients and supplements Every model is built forNordic 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