PNS1017 Features: Ventilate Multiple Areas with Just One Fan So Quiet You Might Not Know it's On Adjustable Airflow for Multi-Inlet Balance Easy Installation Continuous, Trouble-free Operation for Many Years Energy Star Qualified for Energy Savings Air Volume (CFM) - 372 at 0.0'' static pressure, 340 at 0.2'' static pressure, and 302 at 0.4'' static pressure Noise (sones) - 1.7 Power Consumption (Watts) - 98 Energy Efficiency (CFM's/Watt) - 3.5 Speed (RPM) - 1337 Current (Amps) - 0.86 Thermal Fuse Protection - Yes Duct Diameter (inches) - 6'' Super Quiet Operation - Yes Totally Enclosed Condenser Motor - Yes, for long life - Rated for continuous run Insulated Housing - Yes, to prevent condensation and noise Tapered Duct Adaptor for easy connection - Yes 5 Positions for Installation - Yes Grill - Low profile family design Adjustable Airflow for Multi-Inlet Balance - Yes Galvanized Steel for Long Life - Yes Weight - 24 lbs Includes: Joint or Truss Attachment Brackets Included - Yes Suspension Brackets Included - Yes