A:Answer Hi there, this is a great question that we'll be happy to assist you with. Besides color, each one of these refrigerators is basically the same, but when the model is manufactured, these extra letters/numbers are placed on the appliance rating plate and product registration card. These letters/numbers are used to identify manufacturing specific data when the appliance is made. Should service or parts be needed, these are used as identifiers for the specific appliance. We hope that helps and we're wishing you the best. - Guy@GEA
