MARANTEC SYNERGY 370 3/4+ HPCS DC BELT DRIVE GARAGE DOOR OPENER DUE TO CALIFORNIA STATE LAW, THIS OPERATOR CAN ONLY BE SHIPPED TO CALIFORNIA IF A BATTERY BACKUP UNIT IS ALSO PURCHASED AND SHIPPED WITH OPERATOR. THIS UNIT DOES NOT COME WITH THE BATTERY BACKUP, THAT IS SEPARATE ITEM. THE EBAY ITEM NUMBER FOR THE BATTERY BACKUP IS: 282258165018 CHOOSE RAIL BASED ONTHE HEIGHT OF THE DOOR, IF YOU THINK YOU ONLY NEED THE MOTORHEAD REPLACEMENT, PLEASE VERIFY THAT THIS HEAD UNIT WILL WORK WITH YOUR EXISTING RAIL, THANK YOU. Designed and built in Germany with highest standards for safety and quality, S