Universal Fireplace Blower Fan 100CFM 4" Blade 3000RPM #T1-RF100-2 Cross Ref: Montego, Selkirk, Electrahome 2811-581-001, C01574, EF100 (RF100), 2811-581-002, EF100-2 (RF100-2) 2 speed, max 3000 RPM Rotation CCW, 100 CFM Blower includes mounting bracket, and fan blade Mounting holes 4.25 inches center to center all four holes