VORTEX IN-LINE DUCT BLOWER FANS VORTEX VTX600 IN-LINE DUCT BLOWER FAN VORTEX IN-LINE DUCT BLOWER FANS ARE IDEAL FOR USE IN GENERAL PURPOSE EXHAUST APPLICATIONS. VORTEX VTX600 IN-LINE DUCT BLOWER FANS ARE MADE FROM QUALITY STEEL AND FEATURE A HAMMERTONE POWDER COAT FINISH FOR ADDED DURABILITY. THE FANS ARE BUILT WITH AN EXTENDED COLLAR AND LIP TO ALLOW EASY DUCT HOOKUP. AERODYNAMIC BUILD ALLOWS FREE AIR FLOW. FANS FEATURE A PERMANENTLY LUBRICATED, MAINTENANCE-FREE BALL BEARING MOTOR FOR QUIET, VIBRATION-FREE OPERATION. GALVANIZED MOUNTING BRACKETS ALLOW FOR HORIZONTAL OR VERTICAL INSTALLATION. 6’L POWER CORD INCLUDED. VTX600 FANS FIT DUCTS MEASURING 6″ IN DIAMETER. FANS OPERATE AT 2800 RPM. ETL , CSA AND UL507 LISTED.