Fireplace Blower for Heatilator FK21, GFK21; Novus 30; Security UZY3; Rotom Replacement # R7-RB21 Includes blower, speed control, Thermal switch and power cord with 3-prong plug 80 CFM, 1800 RPM, .75 amps, 115 Volts Overall Length = 8" Height 4.5" Flange Opening =4.75", (motor on left) 1 Year Manufacture Warranty