QuadraFire 3 Speed Control Box Quadra-Fire Replacement Control Box for most Pellet Stoves Replaces 812-3390, 812-4410, 812-4940, 812-3392, SRV7000-204 3 Speed Box with Dial to adjust for Specific Stove. Will not work on 800, 1000 or 1100i QuadraFire model pellet stoves SRV7000-704 - Replaces SRV7000-204