Hongso BK GA3650 GA3650B GA3700 GA3700A GA3750 GA3750A Replacement Fireplace Blower Fan KIT for Desa, FMI, Vanguard, Vexar, Comfort Flame Glow Replacment Fireplace Blower Fan KIT Included Replacement Fireplace Blower, Pre-wired harness for easy installation, Rheostat variable speed control, 3-prong power cord, Velcro mounting strips and noise reduction padding Installation instructions. Blower total Length = 15" Width =4" Height = 3 1/2" Flange Opening = 12.5" Motor Type:replacement blower fan unit Insulation Class H (rated to 392F / 200C) Motor RPM: 3000 Airflow in CFM: 160 Ratings: 120V, 60Hz Power Consumption (watts): 45 Thermostat: No Certifications: Rheostat Motor UL Approved Fits Desa Tech, FMI, Vanguard, Vexar, Comfort Flame, Comfort Glow Fireplaces; Cross Reference Parts Numbers: Blower Kit BK, GA3650, GA3650B, GA3700, GA3700A, GA3750, GA3750A, 103581-01, 103581-02, 103581-03, 103581-04. * NOTE: The "Fits" BRAND and MODEL # Listed are Reference ONLY! Make sure you measure the size of your original blowers and compare with the replacements BEFORE you order. Benefits: Helps reduce costly energy bills, Heats large rooms efficiently, Installs quickly and easily, Reasonable price aftermarket parts.