Tjernlund SCP Duct Booster Fan Speed Control

Duct Booster Fan Speed Control; Type Plug-In; Used On M-4, M-6, M-8 and P-4, P-6, P-8 Duct Booster Fan; Voltage Rating 125 Volt AC at 60 Hertz; Current Rating 3 Amp; Maximum Rating 300 Watt