Image is Representational - See Manufacturer Specs | Fan Tubeaxial - 12VDC - Square - 80mm L x 80mm H - Ball - 46.5 CFM (1.30m�/min) - 3600 RPM - 32.0 dB(A) - 2 Wire Leads. The 8412NH-217 is tubeaxial fan with polyamide (PA) nylon fiberglass reinforced blade and polybutylene terephthalate (PBT) fiberglass reinforced frame. Operating temperature range is from -4 to 158�F (-20 to 70�C).