GA3650 GA3650B GA3700 GA3700A GA3750 GA3750A Fireplace Blower Fan KIT for Desa, FMI, Vanguard, Vexar, Comfort Flame Glow. The BK GA3650 GA3650B fan kit by DURABLOW is designed to fit a number of fireplaces, including models from Desa Tech, FMI, Vanguard and Vexar. The blower kit includes all the components…