Rule In-Line Blower 3 Inch Ducting -Efficient high-volume air flow -Quiet operation -Low amp draw -Slip-on inlet and outlet ducting connections -Sealed motor shaft for moisture protection -Corrosion resistant nickel-plated motor housing -IMCI (CE) -USCG 183.410 Compliant: Ignition protected -Flow Rate: 135 CFM @ Open Flow -Voltage: 13.6 (Vdc) -Fuse Size: 4 (amp) -Amp Draw: 2.9 (amp) -Dimensions (HxWxD): 73 x 127 x 81 (mm) -Port Type: 3 Inch (76 mm) Ducting.