Rebuild Service for Curtis ITS 3648V 500A Masterdrive Controller.  Please look closely at picture and the model number (1268-5415) to ensure that this looks exactly like your controller. When you purchase this product, you are paying for the service of having your controller rebuilt. Within 1 business day of ordering this service you will be emailed a form and an address to return your controller to be rebuilt. Your controller will be rebuilt (7-10 business days) and return directly to you. Your controller will be covered by a one year warranty that covers defects. Cost of this product covers the cost of us shipping your controller back to you but you will be responsible for the cost of shipping your controller to us for rebuild.