IN-LINE CEILING EXHAUST FAN, DISCHARGE DIRECTION HORIZONTAL/VERTICAL, DUCT DIAMETER NOT APPLICABLE, DUCT HEIGHT 8 IN, DUCT WIDTH 18 3/4 IN, DUCT SHAPE RECTANGULAR, NAMEPLATE VOLTAGE 115V AC, EXHAUST AIRFLOW @ 0.100 IN SP 1,543 CFM, EXHAUST AIRFLOW @ 0.200 IN SP 1,503 CFM, EXHAUST AIRFLOW @ 0.250 IN SP 1,483 CFM, NOISE LEVEL @ 0.100 IN SP @ 5 FT 3.2 SONES, FAN WATTAGE 822 W, FREQUENCY 60 HZ, FULL LOAD CURRENT 7.8 A, HOUSING MATERIAL STEEL, MOTOR O