6x20x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack lighting-systems/kits Contains AC Infinity axial fans

Contains AC Infinity axial fans <> which meet UL-507 standards for safety under Underwriters Laboratories certificate E503903

The switch and dimming control are monitored by the RS485 transfer board

Outside Diameter: 45

All materials are rated for washdown and are resistant to corrosion from commercial cleaners and sanitizers

6x20x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack lighting-systems/kits Contains AC Infinity axial fansNordic Pure Custom MERV 7 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